Status of the Aquatic Plant Maintenance Program in Public Waters

Annual Report for Fiscal Year 2006 - 2007 Executive Summary

This report was prepared in accordance with §369.22 (7), Florida Statutes, to provide an annual assessment of the control achieved and funding necessary to manage nonindigenous aquatic plants in intercounty waters. The authority of the Department of Environmental Protection (DEP) as addressed in §369.20 (5), Florida Statutes, extends to the management of nuisance populations of all aquatic plants, both indigenous and nonindigenous, and in all waters accessible to the general public. The aquatic plant management program in Florida’s public waters involves complex operational and financial interactions between state, federal and local governments as well as private sector compa- nies. A summary of plant acres controlled in sovereignty public waters and associated expenditures contracted or monitored by the DEP during Fiscal Year 2006-2007 is presented in the tables on page 42 of this report.

Florida’s aquatic plant management program mission is to reduce negative impacts from invasive nonindigenous plants like water hyacinth, water lettuce and hydrilla to conserve the multiple uses and functions of public and rivers. Invasive plants infest 95 percent of the 437 public waters inventoried in 2007 that comprise 1.25 million acres of fresh water where fishing alone is valued at more than $1.5 billion annually. Once established, eradicating invasive plants is difficult or impossible and very expensive; therefore, continuous maintenance is critical to sustaining navigation, flood control and recreation while conserving native plant on sovereignty state lands at the lowest feasible cost.

The floating, non-native water hyacinth and water lettuce are two of the world’s fastest growing plants. These invasive plants, that once covered more than 125,000 acres of Florida’s public waters, are the DEP’s highest management priority. Floating plants covered a combined 3,342 acres in the 247 waters in which they were detected during 2007 - a 2,200-acre reduction from 2006 and an 11,000-acre reduction since 2005. About $3.5 million were spent controlling nearly 21,900 acres of floating plants in FY 06-07. Ninety-eight percent of Florida’s public waters are under maintenance control in regards to invasive floating plants. Efforts are underway to bring remaining systems like Monroe, Shell Reservoir and the St. Johns, Hillsborough and Withlacoochee Rivers under control.

Hydrilla, a submersed invasive species introduced from Southeast Asia in the 1950s, dispersed throughout the state impacting nearly 140,000 acres by the early 1990s. Dense mats form at the water surface blocking navigation, jamming against bridges, starving fish of oxygen and hampering flood control. Increased control efforts from improved, recurring funds since 2000, along with wave action and increased turbidity from three hurricanes in 2004, reduced the hydrilla standing crop to 20,400 in 2005. However, underground tubers that can sprout and blanket waters within one year still infest an estimated 81,400 acres. Hydrilla, which has been recorded in as many as 346 public water bodies during the previous 24 years, was detected in 199 waters in 2007. Hydrilla cover increased to about 45,400 acres in 2007. It is considered to be under maintenance control in 96 percent of Florida’s public waters. However, hydrilla is continuing a rapid recovery from the post hurricane year low, expanding in some of Florida’s largest and most important lakes including Toho, Orange, Lochloosa and Rousseau. Approximately $6.8 million were spent managing 13,569 acres of hydrilla in public waters in FY 06-07. This low effort of control is more reflective of the lack of cost- effective, large-scale management tools available since the confirmation of increasing resistance to fluridone herbicide in hydrilla. Intense research and operational efforts during the past six years have lead to the development of new strategies that will be employed in an expanded level of hydrilla management in FY 07-08.

Nine additional invasive plants collectively infest 88 percent of Florida’s public waters covering about 19,000 acres. More than $5.8 million were spent managing other plants in FY 06-07, including invasive exotics as well as native plants that interfered with uses and functions of Florida public waters.

Approximately $29.7 million are needed for FY 08-09 to manage invasive exotic aquatic plants; $18 million to sustain current control levels and improve upon hydrilla maintenance strategies; $3.5 million to control floating plants; and $8.2 million to manage other invasive plants, especially torpedograss, in Florida public waters. Year in Review

• Invasive non-native plants pollute 95 percent of Florida’s public lakes and rivers that comprise 1.25 million acres of fresh water where fishing alone has been valued at $1.5 billion annually. (pp. 1, 3) • The DEP aquatic plant control program mission is to reduce negative impacts from invasive non-indigenous plants in public waters while conserving or enhancing diverse native plant habitat. (pp. 2-34) • Eradicating established invasive plant populations has proven nearly impossible; therefore, continuous maintenance of invasive aquatic plants is needed to sustain navigation, flood control and recreation while preserving native plant habitat. (pp. 26-27) • Floating water hyacinth and water lettuce, two of the world’s fastest growing plants, covered as much as 125,000 acres of Florida public waters as recently as the 1960s and therefore are the DEP’s highest management priorities. (pp. 11, 12, 26, 32) • Floating plants were present in 247 public lakes and rivers in 2007 covering 3,340 acres and are under maintenance control in 98 percent of Florida’s public waters. (p. 39) • Managers spent about $3.5 million controlling 24,500 acres of floating plants in Florida public lakes and rivers during FY 06-07 to keep them under maintenance control. (pp. 39, 42, 43) • Submersed hydrilla, imported in the 1950s as an aquarium plant, evolved into statewide water and habitat management crises by the mid 1990s infesting about 140,000 acres in 346 public water bodies. (pp. 6, 35, 40) • Improved, recurring funding since 2000 has allowed for increased hydrilla control. Intensive management and effects of wind and waves generated by hurricanes and strong winter and spring storms reduced hydrilla standing crop to 20,400 acres in 2005 - the lowest hydrilla level recorded since 1982. (pp. 35, 40) • Hydrilla is under maintenance control in 96% of the 199 public waters that it infested in 2007; however, tubers infest about 81,400 acres and represent the potential for immediate large-scale reinfestation. (pp. 6, 40) • Managers spent $6.8 million treating 13,570 acres of hydrilla during FY 06-07. (pp. 40, 42, 43) • Hydrilla is developing an increasing resistance to fluridone herbicide that was most effective in controlling hydrilla during the past 15 years. More aggressive hydrilla control strategies have been applied to suppress its recovery from 2004 hurricane-related conditions. However, hydrilla standing crop has more than doubled during the past two years to 45,400 acres reported in 2007. (pp. 35, 40) • Several thousand acres of floating islands and tussocks formed in public waters as lakes rapidly refilled after extreme drought in the early 2000s. Freely drifting tussocks and islands must be controlled to prevent problems with access and navigation, pushing against bridges or clogging flood control structures. (p. 21) • $3.3 million were spent controlling floating islands in Florida public waters during FY 06-07 - down from about $9 million during each of the two previous years. Intensive management combined with receeding water levels has reduced the need for floating island management in FY 07-08. (pp. 42-43) • The Florida Exotic Pest Plant Council lists 12 Category I Plants, capable of disrupting aquatic ecosystems and causing economic harm, in Florida public waters. Nine Category I plants in addition to hydrilla, water hyacinth and water lettuce were detected covering 19,000 acres in 88 percent of Florida’s waters in 2007. (pp. 3-15, 41) • Invasive torpedograss has expanded dramatically during the past several years on soils exposed by drought on the bottom of . More than 10,000 acres of torpedograss were controlled in Lake Okeechobee during FY 06-07. (pp. 36, 41, 43) • $29.7 million are needed in FY 08-09 to control invasive and nuisance plants in Florida public lakes and rivers. • $18.0 million to prevent hydrilla from growing out of maintenance control • $ 3.5 million to sustain maintenance control of floating plants • $ 8.2 million to control other invasive plants and floating islands and tussocks Contents

Background...... 1 Prevention and Assessment...... 2 Invasive Plant Problems...... 3 Aquatic Nightshade...... 4 Giant Salvinia...... 5 Hydrilla...... 6 Hygrophila...... 7 Napier grass...... 8 Paragrass...... 9 Torpedograss...... 10 Water Hyacinth...... 11 Water Lettuce...... 12 Water Spinach...... 13 West Indian Grass...... 14 Wild Taro...... 15 Biological Control...... 16 Chemical Control...... 18 Mechanical Control...... 20 Physical Control...... 22 Integrated Management...... 24 Maintenance Control...... 26 Management Objectives...... 27 Research and Information Transfer...... 28 Education...... 29 Standardization...... 30 Authorities / Responsibilities...... 31 Management Priorities...... 32 Hydrilla Control Considerations...... 33 Management Timetable...... 35 Operations – Floating Plants...... 39 Operations – Hydrilla...... 40 Operations – Other Plants...... 41 FY 06-07 Management Statistics...... 42 Funding Needs...... 43 Appendix I-Funding Expenditures and Allocations...... 44 Background

Florida Fresh Waters • 1.5 million acres of lakes and rivers • 7,700 lakes and ponds • 1,700 rivers and streams • 437 public* lakes and rivers total 1.25 million acres • thousands of miles of canals * sovereignty lands with public boat ramp - note: 24 waters were not accessible in 2007 due to low water. Recreation Uses of Florida’s Public Waters

• recreation • commerce • navigation • habitat • ecotourism • potable water • flood control • irrigation Navigation Navigation and flood control structure S65 and Highway 60 on the south end of Benefits of Aquatic Plant Management • $1.5 billion in annual revenues to Florida from freshwater fishing and wildlife observation. (1985 U.S. Fish and Wildlife Services Report) • Orange and Lochloosa Lakes (18,400 acres, Alachua County) generated $10 million annually to local economies. A ten-fold reduction in revenues was identified when water hyacinth and hydrilla covered the water surfaces. (1986 & 1987 University of Florida Studies) Habitat • $13 million value for 4,000-acre Lake Jackson (Leon County). (1996 FSU Economic Report) • $50 million value for 2,500-acre Lake Tarpon (Pinellas County). More than 700 jobs generating $9 million in wages. (1997 FSU Economic Report) • $40 million economic value reported at risk from invasive aquatic weeds, especially hydrilla, for 27,000-acre (Highlands County). (2004 FSU Economic Report) • $50 million economic value reported at risk from invasive aquatic weeds, especially hydrilla, for the 61,460-acre Kissimmee Chain of Lakes (Osceola County). (2006 FSU Economic Report)

1 Prevention and Assessment

Intuitively, if invasive plants are not imported Federal, state and local governments regulate into Florida waters, environmental damage activities and inform the public about invasive and expensive management programs would not aquatic plant problems through a variety of be necessary. If invasive plants are present but methods. detected early, damage and expenses can be • articles minimized. Florida’s multi-agency prevention • books program and the Bureau of Invasive Plant • brochures Management (BIPM) annual inventory of • laws, ordinances and codes public waters are steps toward reducing • multi media advertising negative impacts caused by invasive aquatic • public speaking engagements plants. • reports • research publications Prevention • school curricula Four agencies cooperate to reduce invasive • web sites (http://plants.ifas.edu/guide, aquatic plant introductions into Florida. www.dep.state.fl.us/lands/invaspec) • the US Departments of Homeland Security (DHS) and Fish and Wildlife Assessment Service (FWS) inspect import shipments Each year, BIPM field staff inventory invasive of aquarium plants plants in Florida’s 461 public waters that • the Florida Department of Agriculture comprise 1.26 million acres of fresh water. and Consumer Services (FDACS) Surveys are conducted for various reasons: inspects wholesale aquatic plant nurser- • detect new invasive plant introductions ies and alert managers for rapid control • the BIPM inspects retail aquatic plant • establish needs-based and performance- sales outlets and regulates the collection based management budgets of plants from, and planting of aquatic • develop management priorities to plants into, state waters distribute available funds • evaluate impacts from invasive plants and management programs

Inspecting for prohibited plants Plant inventory in Lake Okeechobee

2 Invasive Plant Problems

The National Invasive Species Council de- • wide dispersal and survival fines invasive species as “a species that is • broad environmental tolerance non-native to the ecosystem under consider- • resistance to management ation and whose introduction causes or is likely to cause economic or environmental Problems caused by invasive aquatic plants harm or harm to human health.” The Invasive • loss of recreation Species Advisory Committee provides addi- • severe oxygen depletion tional clarification of invasive species using • stunted fish populations and fish kills weeds as an example. (www.invasivespecies • water flow restrictions and flooding info.gov/docs/council/isacdef.pdf) • navigation restrictions • accelerated sedimentation About 97 percent of Florida’s public waters • habitat destruction inventoried in 2007 contained one or more • reduction in diversity non-native plants. The Florida Exotic Pest • reduction in property values Plant Council (FLEPPC) lists 12 of the 24 non-native aquatic plants found in Florida’s public waters among the 65 Category I inva- sive plants in the state. Category I plants invade or disrupt native plant communities.

Category I invasive plants were reported in 95 percent of the public waters inventoried during 2007 and impacted 149,263 acres (includes estimated 81,442 acres impacted by hydrilla standing crop and tubers).

Water hyacinth has plagued Florida waters since the late 1800s Characteristics of invasive aquatic plants: as shown in the above 1898 post card of the St Johns River • rapid growth • multiple reproductive methods FLEPPC Category I Aquatic Plants Found in Florida Public Waters

Aquatic nightshade Solanum tampisense Giant salvinia Salvinia molesta Hydrilla Hydrilla verticillata Hygrophila Hygrophila polysperma Napier grass Pennisetum purpureum Paragrass Urochloa mutica Torpedograss Panicum repens Water hyacinth Eichhornia crassipes Water lettuce Pistia stratiotes Water spinach Ipomoea aquatica W Indian marshgrass Hymenachne amplexicaulis Wild taro Colocasia esculenta Hydrilla mat covering the surface of

3 Aquatic Nightshade

Scientific name: Solanum tampicense Origin: , West Indies Introduction: 1970s, natural colonization (?) Aquatic community: Emergent Habitat: Shorelines, wet soils Distribution: Central Florida Management effort: Eradication 2007 public waters / plant acres: 1 / 25

Environmental and Economic Concerns

• Sprawling, prickly shrubs up to 15 feet form dense tangled monocultures Aquatic nightshade flower and fruit (box), spines on leaf (circle) • Invades disturbed areas and grows over established native vegetation • Difficult to selectively remove from intertwined native vegetation • Seeds disseminated by birds increasing potential for wide and rapid dispersal

Aquatic nightshade invading understory of

Management Options:

Biological: none available Chemical: 2,4-D, triclopyr Mechanical: impractical - plants in shallow water, Physical: hand pulling individual plants

4 Giant Salvinia

Scientific name: Salvinia molesta Origin: South America Introduction: 1990s, horticulturists Aquatic community: Floating Habitat: Water surfaces, quiescent waters Distribution: N & central FL lakes, SW FL canals Management effort: Eradication 2007 public waters / plant acres: 0 / 0

Environmental and Economic Concerns

• Grows rapidly and reproduces by vegetative Giant salvinia plants fragments • Dense infestations block navigation, cover native plants and clog irrigation pipes • Reduces oxygen content in water and may lead to fish kills • Considered as one of the world’s worst weeds

Magnification of hairs on frond surface

Eradicating S. molesta from a north Florida pond using diquat herbicide

Management Options: Biological: South American weevil, Cyrtobagous salviniae Chemical: diquat, fluridone, glyphosate, penoxsulam Mechanical: not feasible in current infestations Physical: dewatering

5 Hydrilla

Scientific name: Hydrilla verticillata Origin: Southeast Asia Introduction: Ear1y 1950s, aquarium trade Aquatic community: Submersed, surface mats Habitat: Inches to 35 feet deep Distribution: Statewide Management effort: Maintenance control 2007 public waters / plant acres: 199 / 45,406 (tubers infest estimated 81,440 acres)

Environmental and Economic Concerns • Grows as much as four inches per day in Florida waters Dense hydrilla growth at water surface • Can cover water body surface 1-2 years after introduction • 80 percent of plant mass is in the upper two feet of water column - blocks sunlight and shades out native plants - blocks air exchange and consumes oxygen - fish kills - virtually stops access, navigation and recreation - breaks loose and jams against bridges and dams • Reduces water activity-based incomes and property values • Doubles sedimentation rate from scenesing leaves and stems • Disperses by fragments, buds, and runners (no seeds) • Resists control via underground propagules (tubers) - millions produced per acre - no effective tuber control method - lie dormant as long as seven years Hydrilla sprouting from tuber

Hydrilla mat covering the surface of Lake Rousseau Hydrilla jam against bridge

Management Options:

Biological: sterile grass carp, host specific insects (little insect success to date) - testing pathogen in con- junction with herbicides - increasing overseas exploration for additional host-specific insects Chemical: large scale fluridone or penoxsulam - copper, diquat, especially endothall for smaller infestations - testing several new herbicide compounds: bispyribac, flumioxazin - imazamox as possible growth regulator Mechanical: harvest from spring runs, harvest/shred mats against structures Physical: hand pull / diver dredge new infestations or in fast flowing water

6 Hygrophila

Scientific name: Hygrophila polysperma Origin: India, Malaysia Introduction: Mid 1940s, aquarium trade Aquatic community: Submersed, emergent Habitat: Wet soils to water 15 feet deep Distribution: Central / South Florida, many canals Management effort: Complaint management 2007 public waters / plant acres: 25 / 254 Stem rooting at leaf nodes Environmental and Economic Concerns • Forms dense surface mats especially in quiescent waters - excludes light and oxygen penetration for native plants and animals - hinders navigation and diminishes flood control capacity • Fragile stems root at each leaf node allowing rapid dispersal and establishment • Expensive and extremely difficult to control • Most public water infestations found in rivers or in lakes near river inflow

Hygrophila clogging a South Florida flood control canal

Management Options:

Biological: extremely high rates of sterile grass carp (in canal systems) Chemical: frequent applications of various formulations / rates of copper, diquat, endothall, fluridone and 2,4-D provide marginal control Mechanical: harvest floating mats Physical: hand pulling, raking

7 Napier Grass

Scientific name: Pennisetum purpureum Origin: Old World, Africa Introduction: Early 1900s, forage grass Aquatic community: Emergent grass Habitat: Shorelines, wet to dry soils Distribution: Central and South Florida Management effort: Complaint management 2007 public waters / plant acres: 30 / 96

Environmental and Economic Concerns

• Clump-forming grass up to 12 feet tall along shorelines, in wet to dry soils • Most often in disturbed areas, especially along canal banks • Problems with flood control by blocking access to canals and impeding water flow • Deep fibrous root system enables drought resis- tance, but can be injured by freezes • Propogates vegetatively from root crown divisions or rhizome and stem fragments, espe- cially after mechanical control such as tilling

Management Options: Biological: none available Chemical: glyphosate Mechanical: mowing, harvest or shred floating mats Physical: drawdown, desiccation and burning

8 Paragrass Scientific name: Urochloa mutica Origin: Africa Introduction: Late 1800s, forage grass Aquatic community: Emergent grass Habitat: Wet soils, shorelines, floating mats Distribution: Central and South Florida Management effort: Complaint management 2007 public waters / plant acres: 197 / 1,109

Environmental and Economic Concerns

• Sprawling grass up to 15 feet long that forms dense tufts on shorelines Dense tangle of paragrass • Provides little wildlife value and crowds out native plants Flower Single Plant • Mats can break loose forming floating tussocks • Considered one of the world’s worst weeds

Single plant Management Options:

Paragrass covering Lake Kissimmee shoreline Biological: none available Chemical: glyphosate Mechanical: mowing, harvest or shred floating mats Physical: drawdown, desiccation and burning

9 Torpedograss Scientific name: Panicum repens Origin: Old World Introduction: Late 1800s, forage grass Aquatic community: Emergent Habitat: Dry land to water six feet deep Distribution: Statewide Management effort: Complaint management 2007 public waters / plant acres: 355 / 16,234

Environmental and Economic Concerns

• Thick mats stop navigation and water movement • Displaces native plants in wet soils and shallow waters Torpedograss in Lake Okeechobee • Resists control via extensive starch-laden rhizomes • New plants start from cut or tilled rhizomes

• Most widely dispersed invasive exotic plant in Florida public waters - persent in 83 percent) • Rapid growth and spread on exposed soils

Torpedo-like root tip (in circle)

Inspecting torpedograss infestation on Lake Okeechobee

Management Options: Biological: none available, fungus species under review Chemical: glyphosate, imazapyr Mechanical: harvest floating islands Physical: drawdown and burn prior to treating with herbicides; flood after treatments

10 Water Hyacinth Scientific name: Eichhornia crassipes Origin: South America Introduction: 1880s, horticulturists Aquatic community: Floating Habitat: Water surfaces Distribution: Statewide, especially peninsula Management effort: Maintenance control 2007 public waters / plant acres: 216 / 1,458

Environmental and Economic Concerns

• Populations double in as little as two weeks • Disperses by seeds and stolons • Harbors mosquitoes • Speeds sedimentation by shedding roots and shoots • Dense mats prevent air and light diffusion into water - killing native plants, fish and wildlife - preventing decomposition of detritus • Mats dam against bridges and flood control structures • Reduces property values and local tax revenues

Water hyacinth covering a tributary of Fisheating Creek, Water hyacinth roots and shoots

Management Options:

Biological: two weevil species and a moth larvae stress plants reducing plant size, vigor, seed production Chemical: 2,4-D, diquat, occasionally glyphosate, copper Mechanical: harvesters or shredders at bridges or flood control structures Physical: occasional hand picking pioneer populations

11 Water Lettuce Scientific name: Pistia stratiotes Origin: South America Introduction: Colonial period, ship ballast (?) Aquatic community: Floating Habitat: Water surfaces Distribution: Peninsula, rare in panhandle Management effort: Maintenance control 2007 public waters / plant acres: 159 / 1,884

Environmental and Economic Concerns

• Growth rate similar to water hyacinth • Harbors mosquitoes • Mats prevent air and light diffusion into water - killing native plants, fish and wildlife - preventing decomposition of detritus • Speeds sedimentation by shedding roots and shoots • Dense mats dam against bridges and reduce water flow at flood control structures

Below: water lettuce covering (Pool B)

Management Options:

Biological: 2 host-specific insects (ineffective to date) Chemical: diquat - occasionally copper near drinking water intakes - carfentrazone Mechanical: harvest around bridges and flood control structures Physical: occasional winter drawdowns (drying and desiccation)

12 Water Spinach

Scientific name: Ipomoea aquatica Origin: China Introduction: Mid 1900s, vegetable crop Aquatic community: Emergent Habitat: Dry land, shorelines, floating mats Distribution: Isolated sites, statewide Management effort: Eradication 2007 public waters / plant acres: 0 / 0

Environmental and Economic Concerns

• Grows several inches per day • Forms dense canopies over emergent plants Water spinach stem and flower • Creates floating mats on water surfaces • Common weed throughout the tropics, especially in rice fields • Potential for rapid dispersal by persons planting as a vegetable crop

Water spinach growing across central Florida pond after escaping from shoreline cultivation

Management Options:

Biological: none available Chemical: 2,4-D, glyphosate, imazapyr, triclopyr Mechanical: not feasible, fragments start new plants Physical: hand pulling

13 West Indian Marsh Grass

Scientific name: Hymenachne amplexicaulis Origin: Central, South America, West Indies Introduction: 1970s, natural colonization (?) Aquatic community: Emergent Habitat: Wet soils to shallow water Distribution: South & Southwest Florida Management effort: Maintenance control 2007 public waters / plant acres: 22 / 741

Environmental and Economic Concerns

• Forms dense monocultures in marshes and along shorelines • Displaces native grasses because of its broader tolerance to wet and dry periods • Difficult to control when growing among Flower stalks native grasses because they are suscep- tible to the same control methods

West Indian marsh grass blocking Arbuckle Creek

Manage- ment Options: Management Options:

Biological: none available Chemical: glyphosate Mechanical: impractical - plants in shallow marshes Physical: fire + glyphosate to control regrowth

14 Wild Taro

Scientific name: Colocasia esculenta Origin: India, Southeast Asia Introduction: Early 1900s, food crop Aquatic community: Emergent Habitat: Wet soils, shallow water, floating islands Distribution: Statewide Management effort: Eradicate new colonies 2007 public waters / plant acres: 258 / 541

Environmental and Economic Concerns

• Displaces native plants, especially along shaded shorelines and in • Expanded from 35-59 percent of Florida’s public water bodies between 1983-2007 • Shoreline populations break loose forming floating islands that block access, cover native plant habitat, and root in new areas, spreading the infestation

Wild taro growing along shoreline

Management Options:

Biological: none available Chemical: 2,4-D + diquat + Kinetic most effective, glyphosate, triclopyr Mechanical: harvest floating mats - roots fragment into new plant Physical: hand pulling - use caution, oxalic acid irritant in plant

15 Biological Control

General cient to satisfy management objectives. While Biological controls rarely eradicate invasive the intent is to demonstrate cost-effectiveness plants. Their use in Florida’s aquatic plant of already released biological controls, the control program is to lessen invasive plant effect can be that research funding for addi- competitive advantages below some ecologi- tional controls (additional stress on a target cal or economic threshold. Biological control invasive plant) is terminated before a solution success is often measured in terms of control is found and researchers move on to other achieved by individual agents. However, problems. fewer than one-third of biological controls released worldwide have proven effective The BIPM and USACE provide funding for when judged under this criterion. The goal of review and dispersal of approved controls. the biological control program is to continue to The USDA and UF conduct classical biologi- evaluate and release enough insects or patho- cal control research through overseas explora- gens to, if not eliminate, at least reduce the tion for insects and pathogens. need for, or amount of, other management • to control established invasive plants options. • with host-specific controls (will not damage non-target plants) The biological control component of the The USDA and FDACS regulate the release aquatic plant management program has of biocontrol agents in Florida. strained under unrealistic expectations. Research and development funding has been Fourteen biological controls have been evalu- minimal, piecemeal and non-recurring. There ated overseas and released in Florida to control is pressure on researchers from managers and the following invasive aquatic plants: policy makers to transfer limited funding to other control options if each evaluated poten- Plant # Biocontrols tial control does not immediately reduce • alligatorweed 3 target invasive plants. Consequently, there is • hydrilla 4 pressure on researchers to declare manage- • water hyacinth 3 ment success before stress or control is suffi- • water lettuce 2 • melaleuca 2

Defoliation and stem collapse of alligatorweed mat from biocontrols

Flea beetle feeding on alligatorweed leaf

16 Biological Control Efforts in Florida Four insects have been released to attack Three insect species were released in the late hydrilla leaves (2), stems (1) and tubers (1). 1960s to control invasive alligatorweed. Al- However, none have shown signs of control- though alligatorweed is one of the most ling or stressing hydrilla in public waters. widely dispersed aquatic plant species in Florida (found in 75 percent of public waters during 2007), mechanical or herbicide man- agement is rarely necessary in public waters. Insects usually defoliate leaves and collapse stems by early summer (previous page).

Two weevil species and a moth whose larvae feed on the leaves reduce water hyacinth vigor and seed production but have not controlled the plant in Florida regardless of the amount of time (10 or more years in some cases without herbicide use, as in the Leaf-mining fly on hydrilla photographs below) or the amount of Only the sterile Asian grass carp has shown concomitant mechanical or herbicide control. hydrilla control capability, but it is not selec- tive and is difficult to contain in Florida’s Water hyacinth on Fisheating Creek severly stressed by weevils interconnected surface waters. Lack of selec- tivity is addressed by stocking the lowest possible rates before hydrilla expands, or in combination with herbicides to keep hydrilla at the lowest level. Removing large numbers of grass carp if overstocked in public water bodies has proven nearly impossible. Triploid grass carp are stocked in 80 of Florida’s 461 public water bodies for hydrilla control.

Insect feeding scars on water hyacinth leaves

Sterile grass carp in hydrilla Two South American weevils released to manage water lettuce have dispersed and feed on the plant but have shown few signs of controlling or stressing water lettuce despite several intensive establishment attempts. 17 Chemical Control

Chemicals used to control aquatic plants in The US Environmental Protection Agency Florida public waters fall into two broad (USEPA) evaluates herbicides for potential categories: herbicides and adjuvants. human and environmental impacts and regis- ters compounds for use in waters if the ben- Herbicides efits far exceed identified risks. Evaluations Herbicides are applied directly to target include: invasive plants or are dispersed within the • residue in water, fish, shellfish and crops water column to kill plants. • environmental fate (dispersal in the environment) • Advantages • how compounds break down and break- - generally selective control down products - relatively inexpensive • routes of entry into test animals - quickly control broad area • short term (acute) toxicity in test animals, - eradicate pioneer infestations • long term (chronic) impacts including birth defects, tumors and other abnormalities • Disadvantages • toxicity to aquatic life such as fish, - temporary waterfowl and invertebrate - inconsistent public opinion/acceptance - plants may develop resistance The FDACS registers USEPA-approved herbi- - various water use restrictions cides for use in Florida after consulting with - plants decompose insitu state and federal environmental and health - possible non-target plant impacts agencies through the Pesticide Review Council.

Research to determine lowest 2,4-D rate for water hyacinth control

18 The BIPM funds and evaluates research to Herbicide class Formulation identify weaknesses in invasive plant carfentrazone liquid lifecycles and to apply herbicides to selec- copper liquid / granular tively control invasive plants. Selectivity is diquat liquid attained through understanding physical and endothall liquid / granular biological parameters including: fluridone liquid / pellet • developing methods to place herbicides imazapyr liquid only on target plants imaxamox liquid • determining the lowest herbicide rates glyphosate liquid that will affect target plants penoxsulam liquid • applying the most appropriate herbicide triclopyr liquid formulation and additives 2,4-D liquid / granular • understanding physiology and suscepti- bility of target and non-target organisms Herbicides are classified as contact or sys- • timing control as target plants are most temic, based upon mode of action. (and non-target plants least) vulnerable • Contact herbicides kill, relatively quickly, the plant or portion of plant on which they Approximately 200 herbicide active ingredi- come into contact. (carfentrazone, copper, ents are registered in the United States. Regis- diquat, endothall) tration criteria are much more rigid for • Systemic herbicides translocate within the aquatic use herbicides vs. their terrestrial use plant.(fluridone, glyphosate, imazapyr, counterparts. Consequently, only 11 herbicide imazamox, penoxsulam, triclopyr, 2,4-D) classes are registered with the USEPA and the Adjuvants FDACS for use in Florida waters. Dissapa- Adjuvants are inert materials added to pesti- tion and efficacy evaluations are underway cide formulations to increase the effective- for additional hydrilla control compounds ness of the active ingredient. Adjuvants: either through the USEPA processes for Ex- • reduce foaming (clogging) perimental Use Permits or through Special • reduce drift in the air Local Needs Registrations. Compounds • spread herbicides across leaf surfaces registered for use in Florida waters include • increase herbicide contact by sticking the following: • increase herbicide penetration

Loading fluridone pellets for large-scale hydrilla control Airboat equipped for liquid and pellet herbicide applications

19 Mechanical Control

Mechanical devices have been used since the early 1900s to sheer, shred, slurry, press, pull, lift and convey aquatic plants from problem areas in Florida public waters. • Advantages - few water use restrictions - remove vegetation - remove nutrients and organics - no oxygen sag (if plants removed) • Disadvantages - limited access in shallow water - high operating costs - spread plants via fragments Water hyacinth control on the , 1939 - kill non-target plants and animals - slow (control 2-3 acres / day High operational expenses and slow rate of - repeated harvests select for invasives control combined with the rapid growth rate of water hyacinth and hydrilla, and propensity for removing all plant and animal life, limit harvesting these plants to small areas (i.e. around bridges) where other control methods have not been effective (i.e. intertidal waters or fast flowing waters in spring runs) and for tussock or floating island control.

Harvesting hydrilla from fast flowing waters of Wakulla Springs

Water hyacinth spoil pile

In efforts to offset management costs, research has been conducted to find Products from aquatic plants include: economical uses for harvested materials. However, since aquatic plants are comprised • potting soil and mulch of about 95 percent water, costs of harvesting, • animal feed supplements drying and otherwise preparing aquatic • paper vegetation for commercial products far • furniture exceed the costs of deriving similar products • methane gas from terrestrial vegetation. 20 As Florida’s four-year drought ended in 2003 and water bodies refilled, thousands of acres of floating islands formed, especially in central Florida public lakes. These islands can consist strictly of floating mats (tussocks) of herbacious aquatic plants, or they can be floating masses of peat and other organic deposits from 2-4 feet thick supporting herbacious and woody plants. In extreme cases floating islands support trees up to 12 inches in diameter and as tall as 50 feet.

Floating islands can inflict the same or greater Shredding floating island of peat and vegetation damage to access, navigation, habitat, bridges and flood control structures as floating mats of water hyacinth if allowed to drift freely. Herbicides effectively control floating herbacious plant mats, but shredders and harvesters provide the only means of controlling floating islands of thick sediments and large trees.

The photos below and to the right document the the removal of more than 200 acres of floating islands that rose to the surface and blocked the Harvesting from the edge of a floating island outfall from Lake Runnymeade, Osceola County, flooding adjacent residences. Floating islands were shredded to facilitate harvesting. Harvesters removed shredded material and less robust float- ing islands from shorelines and access points. Harvested material was deposited on shoreline staging areas, spread and dried, loaded into trucks and hauled to nearby disposal sites.

Spreading and drying harvested material

Floating islands drifting in Lake Runnymeade Removing harvested material from lake 21 Physical Control

Physical controls include managing aquatic • drying stimulates seed germination in plants by hand, desiccation (drawdowns), water hyacinth and lettuce flooding, prescribed fire, suction dredging, • hydrilla tubers are resistant to drying barriers and light attenuation. High cost, selectivity concerns and logistics limit appli- Drawdowns are usually reserved for emer- cations to only a few methods and a few sites gent plant control, especially when: in Florida public waters each year. • conducted in winter months to take advantage of drying and freezing Hand removing aquatic plants, including • combined with prescribed fire to reduce raking, pulling and diver dredging is: thatch and other organics, and stimulate • labor intensive regrowth of invasive plants (ie. torpedo- • used to manage new infestations grass) to facilitate herbicide control - when other methods are ineffective (fast flowing springs) Partial drawdowns, or water level reductions, - when immediate removal is needed are requested to accomodate large-scale (pioneering infestations or removing hydrilla control in several central Florida plants from water pump intakes) reservoirs. Lowering water levels prior to initiating herbicide treatments allows for some Drawdowns are used to retard or turn back storage capacity to buffer against rain events the lake aging process by: flushing out treated waters. Lowering the • aerating sediments and accelerating volume of water can save millions of dollars organic decay in treatment costs and substantially reduce the • compacting and stabilizing sediments quantity of herbicide active ingredient. • controlling emergent aquatic plants Prescribed fire during drawdown, Lake Jackson (Leon County) Drawdowns must be conducted frequently if used to control water hyacinth, water lettuce and hydrilla because:

Winter drawdown on to kill 1,500 acres of water lettuce by desiccation and freezing

22 Prescribed flooding (water level increase) is Diver assisted dredges are used in other available in a few locations to: states and occasionally in Florida to: • strand floating plants on upland sites • control small infestations of submersed immediately prior to drawdowns invasive plants (including hydrilla • retard torpedograss regrowth after tubers) from drawdown, fire and herbicide - fast flowing waters in spring runs and applications rivers • reduce light penetration further - boat ramps or other areas where stressing hydrilla after herbicide immediate removal of pioneer applications infestations is needed Two types of material barriers are available that have limited application including: Colored dyes or tannins can attenuate light on • benthic barriers that are anchored to a larger scale than with barriers. substrates to kill plants through • Commercial blue dyes are currently - light attenuation available but are: - physical disturbance - cost-prohibitive to apply to large • silt curtains that are installed to isolate public water bodies stands of submersed invasive plants - difficult to sustain appropriate - from water currents concentrations in natural, flow- - to prolong herbicide contact time through systems - not selective, especially for control- ling hydrilla that requires less light to grow than native submersed plants • Natural tannins can be concentrated and applied to shade invasive submersed plants, but: - impart aesthetically unacceptable dark brown or black color to the water - are nonselective and not available commercially - are difficult to sustain in appropriate concentrations Diver assisted dredge at Wakulla Springs. Above, diver operating suction dredge; right, hydrilla filling catch basket on barge; below, two dredge units in operation to increase efficiency.

Applying endothall herbicide behind silt barrier in Sanlando Springs (above) 23 Integrated Management

There may be as many definitions of inte- but may discharge too much fresh water into grated pest management (IPM) as there are downstream estuaries. invasive species management programs. Most definitions acknowledge several basic IPM Examples components when developing an IPM plan. Florida’s aquatic plant management program has incorporated IPM strategies since its • multiple management options inception more than 100 years ago when physi- • biology and life cycles of invasive cal, mechanical and chemical control methods species were applied in unison to combat water hya- • ecosystem sensitivity to invasion by cinth growing in the St. Johns River. Examples introduced organisms of current IPM strategies include: • management impacts on ecosystems, • reducing invasive species impacts Chemical + chemical below an economic / ecological • 2,4-D is applied to control water threshold hyacinth when it commingles with grasses • flexibility to adapt management tech- since 2,4-D has little impact on aquatic grass niques to changing conditions species. However diquat, that burns (but does • continuing development of additional not kill) aquatic grasses and bulrush, is used management options when water hyacinth is mixed with bulrush that is susceptible to 2,4-D (below). IPM programs must also address the impor- tance of integrating management tools or strategies among the many shared and often competing uses of parcels of land or water bodies. For example, hydrilla control in the Kissimmee Chain of Lakes must incorporate the above issues as well as a thorough understanding of annual flood control regula- tions, irrigation requirements, recreation and fish and wildlife habitat, especially endan- gered snail kite nesting and foraging.

If the dams that regulate water levels within these reservoirs are opened appreciably during herbicide treatments, application costs escalate, control is jeopardized and additional risks are imposed upon down- stream non-target plants. Likewise, the Water hyacinth growing among bulrush release of herbicide treated waters for irriga- tion may have negative impacts on commer- • Fluridone is applied to reduce large-scale cially important plants, for example in sod, hydrilla infestations, while endothall is used to vegetable and citrus operations. Lowering stress fluridone-tolerant hydrilla prior to treat- water levels (volume) prior to herbicide ment and to touch up remaining hydrilla left applications reduces herbicide use and costs after fluridone applications.

24 Biological + chemical • Hydrilla control is enhanced by • Water hyacinth weevils reduce plant vigor lowering water levels to reduce the and seed production allowing managers to use amount of fluridone or penoxsulam less herbicide to sustain maintenance control. herbicide needed to achieve a lethal • Reducing hydrilla standing crop with conentration, then flooding weeks later endothall or fluridone prior to sterile carp to limit light penetration (light release reduces the number of fish required and stimulates hydrilla growth and breaks potential for subsequent carp feeding on non- down fluridone). target plants. Mechanical + chemical Physical + chemical • Harvesters and shredders remove • Torpedograss is most effectively controlled floating vegetation islands overgrowing by dewatering and burning to remove dense navigation channels while regrowth is thatch, reduce starch and stimulate growth and maintained with glyphosate herbicide. susceptibility to imazapyr and glyphosate herbicides.

Shredding floating islands overgrowing Snake Creek

Physical + mechanical • Drawdowns incorporating freezes and prescribed fire control emergent aquatic plants, but mats of upland plants that colonize exposed soils must be harvested or shredded before or upon reflooding to prevent them from floating Prescribed fire preceeding herbicide applications to control and blocking navigation or structures. torpedograss on Lake Okeechobee 25 Maintenance Control

Florida Statutes, §369.20 (2), authorizes the The Example DEP to direct the control of noxious aquatic Water hyacinth, one of the world’s most inva- weeds ...”so as to protect human health, sive aquatic weeds, covered more than 2,300 safety, and recreation and, to the greatest acres of the Suwannee River as recently as the degree practicable, prevent injury to plant early 1970’s (see figure below). Thousands of and animal life and property.” §369.22 (3), tons of sediments were produced by shedding Florida Statutes requires that nonindigenous of root and shoot material from live plants and aquatic plants be managed at the lowest from controlled plants. Hundreds of acres of feasible levels ...”for the purpose of achiev- water hyacinth required control using thou- ing more effective control at a lower long- sands of pounds of 2,4-D herbicide. range cost.” This concept, known as mainte- nance control, has various economic and Crisis management was replaced by mainte- environmental benefits. nance control in the late 1970s. Under mainte- nance programs, water hyacinth populations Reduces are not allowed to grow out of control. Instead, • sedimentation (filling in) through frequent inspections and control, this • native plant damage invasive plant is reduced to a minor compo- • management costs nent of the ecosystem. Since achieving mainte- • use of herbicides nance control in 1985, relatively little manage- Conserves ment has been necessary, reducing environ- • navigation and transportation mental and economic impacts. Native plants • flood control attributes have returned to the shores and marshes of the • fish and wildlife habitat Suwannee River, restoring fish and wildlife • loss of recreation habitat. acres• loss of property values

W ater Hyacinth M aintenance Control acres Suwannee River, 1974 - 2007 12

10 Hyacinth Acres Acres Controlled 8 Tons of Organics

6 Pounds of 2,4-D

4 Units in Thousands

2

0

4 5 6 7 7 8 9 7 7 7 0 1 2 7 7 8 3 4 5 8 8 8 6 7 8 8 8 8 9 0 8 8 8 1 2 3 9 9 9 4 5 9 9 6 7 8 9 9 9 0 9 9 9 1 2 0 0 3 4 0 0 5 6 0 0 7 Year 0 0

26 Management Objectives

Goals of Florida’s invasive aquatic plant • Sustaining public water body attributes management program include: such as navigation, flood control and recre- ation while preserving or enhancing diverse • Reducing the abundance of invasive non- native vegetation communities for fish and native aquatic plants polluting Florida wildlife habitat. public water bodies. - emphasis on water hyacinth, water • Integrating appropriate biological, chemical, lettuce and hydrilla mechanical and physical control techniques - eradicate new infestations of invasive into cost-effective and environmentally com- aquatic plants patible invasive plant management programs. - sustain established invasive plant pop- ulations at the lowest feasible levels • Reviewing current management strategies - begin managing established stands of and assessing and incorporating, where appro- other invasive aquatic plants priate, new technologies and techniques that enhance invasive exotic aquatic plant management objectives. Hydrilla and Floating Plant Cover in Florida Public Water Bodies, 1982- 2007

100

80 Floating Plants Hydrilla 60

Acres 40

(in thousands)(in 20

0

82 86 90 94 97 99 01 03 5 7 Year 0 0

Resource managers, researchers, and other stakehold- ers met in Orlando in December 2005 for the third in a series of meetings to develop strategies to cope with fluridone resistant hydrilla

Application of penoxsulam herbicide Application of imazamox herbicide under USEPA under USEPA Emergency Exemption Special Local Needs Registration to test efficacy for to treat fluridone-resistant hydrilla hydrilla control 27 Research and Information Transfer

Aquatic plant management is a complex Information Transfer endeavor. Managers must frequently assess The BIPM has long been committed to and adapt to ever-changing weather condi- providing technical information to aquatic tions, new plant introductions and stakeholder plant managers to increase effectiveness and expectations. As with all successful organiza- professionalism. The BIPM also provides tions, there must be a strong commitment to outreach information to non-managers to research and development as well as informa- improve understanding of invasive plants, tion transfer to appropriate stakeholder groups their need for management and management to control invasive aquatic plants and con- methods. serve Florida’s public waterways. Technology Transfer Research Since its inception, the BIPM has been a The BIPM has been conducting and contract- financial supporter of the University of ing invasive plant research and developing Florida (UF) Center for Aquatic and Inva- management strategies for 37 years. Emphasis sive Plants. Using partial sponsorship from has focused on exploring and improving BIPM, the UF has assembled more than biological and mechanical control strategies, 70,000 articles and reports on aquatic and but also includes searching for new herbicides invasive plants and their management, and improved strategies that exploit weak- available online at http://plants.ifas.ufl.edu. nesses in invasive plant life cycles to enhance This information serves as the core for the applications of existing compounds. numerous other extension and informational tools produced by the UF and the BIPM. Research is contracted primarily with Florida universities and colleges, but also with out-of- • weed alerts state or national research institutions when • brochures time or expertise is not available within the • plant and management CDs and DVDs Florida system. (Please visit the BIPM web • web sites site for a list of research projects funded for • posters FY 06-07 and FY 07-08 www.dep.state.fl.us/ • books and articles lands/invaspecindex.htm) Figures 1 and 2 • media information below show the percentages of the $15.2 • reports million in research funds spent on 156 • operation manuals projects by the BIPM since 1970. • classroom activities

Figure 1: Percent of Funds Spent by Plant Figure 2: Percent of Funds Spent by Research Species from 1970 - 2007 Category from 1970-2007

60 60

50 50

40 Other 40 Biocontrol Hydrilla % 30 % 30

20 Hyacinth B Pepper 20 Ecological Herbicide Physiology Melaleuca Lygodium 10 10 Mechanical Education Survey

0 0 123456 1234567 Plant Species Research Category 28 Education

Professional Training Education The BIPM is responsible for permitting Much of invasive plant management involves aquatic plant control conducted in public addressing stakeholder attitudes, and in many waters and therefore endorses professional cases, misperceptions regarding invasive training for BIPM staff as well as contract plants and their control. One of the most personnel involved in aquatic plant manage- effective ways to implement cultural change ment activities. BIPM staff participates on the and impress environmental stewardship re- Boards and attends and speaks at conferences garding invasive species is through education such as the Aquatic Plant Management Soci- programs in Florida’s schools. The BIPM ety, the Exotic Pest Plant Council and the collaborates with the UF and with teachers to Florida Lake Management Society. develop classroom curricula for Grades K-12 (http://plants.ifas.edu/education). The BIPM supports and sponsors activities including IFAS herbicide applicator training Taking education a step further, UF and BIPM courses and summits organized to address initiated an annual one-week workshop in specific topics like research priorities and June 2007 at the UF to provide teachers with environmental stewardship issues. Addition- materials and training to instruct students at ally, BIPM staff reviews other states’ aquatic all grade levels about Florida’s aquatic envi- plant management programs and latest re- ronments as well as impacts and management search to incorporate appropriate components of invasive plants. Training includes class- into Florida’s program and to share expertise room instruction by some of Florida’s leading gained in Florida to adapt in other states. researchers, taxonomists and managers along with field trips to observe firsthand invasive plant problems and management operations.

2007 Aquatic Plant Teachers Workshop

Field observation

Managers and stakeholders attending 1 of 4 summits on hydrilla management and herbicide resistance Outreach The BIPM provides aquatic plant information to non-plant management stakeholders through Classroom instruction materials like brochures and Web sites, and through extension services including presenta- tions to homeowner associations and on-site discussions with waterfront residents. UF and BIPM staff collaborate on a 1,000-page web site that addresses questions, comments and concerns expressed through the past 35 years Plant identification about aquatic plant management in Florida waters (http://plants.ifas.ufl.edu/guide). 29 Standardization

The Department of Environmental Protection The Water Hyacinth Control Example (then Department of Natural Resources) was designated by the Florida Legislature in 1971 For decades, water hyacinth was uncontrolled as the lead agency for aquatic plant control in some waters, or in other instances, managed due to the agency’s broad range of environ- by several agencies with differing or narrowly mental preservation and conservation goals. focused goals. There was no statewide man- agement directive, funding was inconsistent The DEP created the Bureau of Aquatic Plant and plant populations were out of control as Research and Control (now Bureau of Inva- recently as the early 1970s. sive Plant Management - BIPM) to coordinate the aquatic plant management activities of Water hyacinth was reduced from an esti- more than 200 government agencies and mated 125,000 acres in 1960 to a low of commercial companies in Florida. The cen- about 730 acres reported in public waters tralized approach has proven effective for a during 2000 after the program was centralized variety of reasons. under the BIPM. • establishes statewide management and More than 8,300 acres of water hyacinth were resource protection objectives inventoried in 2005 as a result of hurricanes • ensures statewide priority distribution flushing previously inaccessible plants from of available funds adjacent marshes and canals into public lakes • reduces administration; one agency and rivers and from reduced control days due distributes funds to areas of greatest to high winds and increased rainfall. Regain- need ing water hyacinth control was the highest • coordinates management operations program priority for 2006 and 2007. As a with water managers and users result, water hyacinth was reduced to fewer • avoids duplication as well as neglect than 1,500 acres in 2007. • ensures consistency in policy, goals, administration and control methods

Acres of Water Hyacinth in Florida Public Water 1947 - 2007

140,000

120,000

100,000 80,000

Acres 60,000 40,000 20,000 0 1947 1959 1969 1979 1989 1999 Year 2007

30 Authorities / Responsibilities

The Florida Legislature designated the De- Water management, water control (§ 298, partment of Environmental Protection as the Florida Statutes) and other special districts lead agency for coordinating aquatic plant have authorities to raise money and responsi- control activities in 1971 (§ 369.20 (2), bilities to control aquatic plants in canals Florida Statutes). The DEP responded by constructed for flood control and water trans- creating the Bureau of Aquatic Plant Research port (below). Even sovereignty lakes that do and Control now the Bureau of Invasive Plant not have public boat ramps benefit small Management (BIPM) to oversee and coordi- special interest groups and are not eligible for nate these duties. State aquatic plant control funding. Aquatic plant management in these systems is the Funding has never been sufficient for the responsibility of adjacent property owners or BIPM to control all aquatic plant problems. some other unit of government. Additionally, many aquatic plant problems are not considered to be State responsibilities. Eligibility criteria were established by policy in 1989 and later by rule in 1997 (§ 62C- 54.0035 (1), Florida Administrative Code) to identify waters for which the BIPM distributes aquatic plant management funding.

The DEP applies the following common sense principles to distribute aquatic plant manage- ment funding.

• statewide benefit vs. a few localities • public benefit vs. special interests • objective, competitive review process

• appropriateness of the funding source (if Residential canals in Cape Coral for which special districts another entity has fiscal responsibility in raise local funds for aquatic plant control an area, DEP funds should not be used in that area) Water bodies must meet the following criteria to receive State aquatic plant control funds.

• the water body must be sovereignty lands • the water body must have public boat ramp access • a sign must be posted at the ramp stating the water body is open to public use • there must be signs directing the public from roadways to the public ramp • the public ramp area must be sufficiently large to launch boats and park vehicles Public boat ramp on Lake Toho

31 Management Priorities 3. Boat ramps, navigation trails and flood Aquatic plant management funding was insuffi- control structures cient to address even high priority hydrilla • invasive plants as well as nuisance problems in public water bodies during the growths of native and non-native plants 1980s and 1990s. The following priority list are equally problematic if blocking was developed (§62C-54.005 (2) (a-g), these areas or jaming against bridges F.A.C.) to distribute available funds to areas • includes floating tussocks / islands of greatest need and to programs that will achieve the most positive impacts. 4. Create open areas in extensive hydrilla mats if funding is insufficient to complete Increased funding beginning in FY 01-02 has level 5 allowed managers to initiate aquatic plant • recreation control programs into Priority Level 6. • preserve fisheries • flood control and navigation Aquatic Plant Management Priorities in Florida Public Waters 5. Large-scale hydrilla management • control projects of 500-25,000 acres 1. Floating vegetation • water hyacinth and water lettuce 6. Other plants • can impact all areas of public waters • remaining FLEPPC Category I invasive • floating plants in canals that could aquatic plant species contaminate public lakes and rivers • more than 100 other exotic and native aquatic plant species 2. New hydrilla infestations • if controlled prior to establishing tubers, 7. Residential canals or boat trails servicing low-cost eradication is possible private homes or clubs except for: • usually at boat ramps • water hyacinth or water lettuce • hydrilla in canals that could contaminate • hydrilla, if a connecting public water public lakes and rivers has little to no hydrilla

Establishing management priorities

32 Hydrilla Control Considerations

While management of floating plants, water Control feasibility hyacinth and water lettuce, is the BIPM’s • potential for control highest priority, hydrilla control represents the - available methods greatest management expense, and large-scale - environmental conditions hydrilla control in multiple use public waters - water depth and volume represents the greatest management challenge. - water movement (waves, flow) Below are some of the variables that must be - chemistry (oxygen, nutrients, pH) considered when developing large-scale - sediment type (clay, sand, organic) hydrilla control plans. - sediment composition and depth - water temperature Water uses - plant growth stage (hydrilla and non- • navigation (commercial/recreational) target species) • flood control - water clarity (tannins, turbidity, algae) • potable water, irrigation, livestock • history of control success in that water • downstream water uses and needs or in waters with similar conditions • recreation potential • potential for native/invasive plant - boating regrowth - fishing, hunting - water sports (swimming, skiing, etc.) Other considerations - wildlife observation • cost • wildlife management • logistics - endangered species concerns - contractor and equipment availability - fishery and waterfowl management • local government and public support - habitat - including listed plant species level (verbal, financial, in-kind) - nesting sites, foraging habitat • alternative water body proximity - revegetation projects • values associated with the water body at - other wildlife presence risk

Hydrilla covering north end of Lake Toho, 1997 After hydrilla control on north end of Lake Toho, 1998

33 Management Timetable

Plant management programs are developed each year for public waterbodies. Government contrac- tors, BIPM and FWC field biologists draft re- quests that are reviewed by local, state and fed- eral agency personnel and other stakeholders that have authorities or have expressed interest in invasive and nuisance plant management in public waters. Reviewers then meet to establish manage- ment plans, priorities and budgets for the ensuing year. Identified stakeholders are again notified 1-2 weeks prior to project implementation. As new problems arise or if anticipated problems do not materialize, then funds are reallocated among contractors to accomodate these changes. In this way, the program maintains statewide standards and adapts quickly to local and regional needs.

Administrative and Management Time- Reviewing Lake Woodruff hydrilla control plan table for Aquatic Plant Control • May 1 - 15 • January 1 - February 1 Consider comments in developing Managers and contractors meet to workplans for each water body and set develop large-scale hydrilla control priorities within current budget during projects. meetings with agency staffs and interested persons. • February 1 - March 15 Contractors and BIPM and FWC • May 15 - June 30 biologists develop plant management Incorporate approved workplans into requests and propose budgets for the government and private company ensuing fiscal year for public waters. contracts and task assignments.

• March 15 - April 15 • July 1 - June 30 BIPM distributes control requests to Manage aquatic plants pursuant to reviewing agencies with jurisdictional contracts - revise and reallocate authorities. Most large-scale hydrilla funds as conditions change. control projects are initiated. • November 15 - December 15 • April 1 - November 15 Compile and verify data from plant Inventory aquatic plants in public inventories and management invoices. waters to monitor control impact and revise management priorities. • December 15 - 31 Prepare annual report and ensuing • April 15 - May 1 fiscal year budget requests after Compile written comments from analyzing plant inventory and reviewing agencies. management information. 34 Challenges

Aquatic plant management is a complex discipline connected to Florida’s public waters (Fig. 2). that blends predictable sciences of chemistry and Consequently, these plants now present signifi- hydrology with the highly variable parameters of cant challenges. Additional funding for invasive biology and meteorology, for application in venues with boundaries defined by human values and economics. Figure 1: Invasive Plant Growth vs. Funding 120 20 H ydrilla Acres 18 Successful aquatic plant managers: 100 Funds Expended 16 14 • apply the most appropriate control 80 methods 12 60 10 • conserve and enhance natural processes 8 40 and/or human uses of public water bodies 6 Dollars (millions) Acres (thousands) Acres 4 • assess priorities and adapt management 20 2 strategies based on ever-changing 0 0

2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 8 8 8 8 8 8 8 9 9 9 9 9 9 9 9 9 9 0 0 0 0 0 0 0 0 - biological conditions 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 - funding availability Year - public perceptions/demands - control technologies - contractor availability Figure 2: Percent of Florida Public Waters - weather conditions Infested with Wild Taro 1983-2007 The greatest challenges facing Florida aquatic 70 plant managers heading into 2008 include: 60 • sufficient, recurring funding 50 40 • variable tolerances of hydrilla clones 30

Infested 20 to fluridone herbicide 10 • cost effective hydrilla control in multi- Waters Percent 0 use central Florida reservoirs 83 84 86 88 90 92 94 95 96 97 98 99 00 01 02 03 04 05 06 07 Year Sufficient, recurring funding With sufficient funding, hydrilla can be reduced to, plant control became available through the Florida and sustained at, a lower level (Fig. 1). Conversely, Forever Act in FY 01-02. Since then, management when funds are insufficient, hydrilla expands within programs have been initiated for other invasive infested waters and is transported to additional aquatic plant species. waters. When hydrilla expands, a higher level of funding is required to regain and maintain control. Weather and funding This principle applies to managing most invasive Weather plays a significant role in the types and species. Because of their high management priori- extent of aquatic plant-related problems in Florida ties, floating plants and most hydrilla populations public waters and therefore the level of manage- have been contained. Of the 199 hydrilla popula- ment and funding required to conserve the uses of tions recorded in 2007, sixteen were considered not these waters. Managers have known for years that under maintenance control. These are the among the water hyacinth and water lettuce require more highest management priorities for 2008. intensive management following rapid increases in water levels. Not only are floating plants flushed Little was done during previous decades to sup- from marshes and swamps that had been inacces- press other plants like wild taro invading marshes sible during dry periods, but also seeds germinate 35 on reflooded soils exposed during droughts. including expanding control of melaleuca, Australian pine and Brazilian pepper. Such was the case in 2004 and 2005 after a series of three major hurricanes crossed peninsular The current drought has increased the need for Florida elevating water levels to near record highs aquatic plant management in two areas. Water levels after years of low-water drought. These same have receded and water clarity has improved, storms were responsible for uprooting much of the returning ideal hydrilla growth conditions. hydrilla standing crop in central and south Florida Numerous small-scale hydrilla control efforts across lakes and reservoirs. Shading effects from deeper the state helped delay its recovery; however, the water darkened by tannins flushed into these hydrilla standing crop doubled during the past two systems and turbidity churned by seemingly years and management funding requirements will incessant winds in early 2005 had a suppressing likely approach pre-hurricane levels for FY 08-09. effect on hydrilla regrowth for nearly two years. This at the same time that invasive emergent grasses like torpedograss, West Indian marsh grass and These weather events had a marked impact on newly discovered Luziola spruceana have aquatic plant management funding needs for several expanded by thousands of acres on the exposed soils years. Management crews shifted from high cost, in the marsh of Lake Okeechobee. Even if water large-scale submersed hydrilla control to more levels soon increase, these species are adapted to labor-intensive but much less costly floating plant survive in several feet of water and will therefore control. Much of the savings from the reduced require intensive management. hydrilla control requirements was shifted to extremely expensive floating island control also This cyclic nature of aquatic plant management generated by 2004 hurricanes. Most of the floating reinforces the need to have sufficient funding island problems were resolved by the end of FY available in the Invasive Plant Trust Fund to quickly 05-06. With the temporary lull in hydrilla control, respond to new infestations as well as periodic funds were allocated to other management priorities resurgence of established invasive plants.

Clockwise from upper left: hydrilla uprooted by Hurricane Charlie in Lake Weohyakapka; hydrilla blown out of Lake Toho during Hurricane Jeanne; part of a 30-acre floating island blown across Lake Pierce during Hurricane Charlie; harvesting floating islands from Lake Pierce.

36 Hydrilla tolerance to fluridone herbicide ment tools, the DEP should employ an aggressive Since its registration by the USEPA and FDACS management posture toward hydrilla to prevent for use in Florida waters in 1986, fluridone has small populations from becomming large, provided the chief means for large-scale hydrilla unmanagable problems. control. It is slow acting and relatively selective at low doses so hydrilla can be weeded out of native The aforementioned workshops and subsequent plant populations without appreciable oxygen research resulted in further overseas exploration for reduction prevalent when using fast-acting contact- host-specific biological controls to suppress type herbicides on a large scale. hydrilla as well as increased deployment of triploid grass carp, now stocked in more than 80 public Scientists from several research facilities reported lakes for hydrilla control. More than 100 herbicide in 2000 that hydrilla appeared to be developing an compounds were screened for possible inclusion in increasing resistance to fluridone in Florida Florida’s hydrilla management program, from waters. This confirmed field observations of which four compounds now have USEPA approval declining hydrilla control even after following for operational or experimental use in Florida procedures from previously successful fluridone waters. Additionally, new strategies including rates, treatments. This resistance surprised managers combinations, timing and application methods have since hydrilla reproduces asexually in Florida been explored with existing herbicide compounds. (only female plants are present) leaving no avenue Much of this work has been conducted in for gene recombination. Further, fluridone attacks progressively larger waters on progressively larger one gene location in hydrilla leaving a remote hydrilla populations in preparation for when chance for mutations. This is also the first case of hydrilla recovers from hurricane and storm related a plant developing a resistance to a bleaching-type stress in the large central Florida reservoirs and herbicide. north Florida lakes.

When fluridone was first applied in Florida, it is Hydrilla management in flood control reservoirs estimated that hydrilla susceptibility ranged from There are no better examples of the many shared 2-8 ppb. Tolerance now ranges between 2-38 ppb. uses of Florida public waters than in the Kissimmee Mutations occurr randomly among the billions of Chain of Lakes (Lakes Toho, Cypress, Hatchineha growing points in a hydrilla-infested water. Re- and Kissimmee) and Lake Istokpoga. Likewise peated low dose fluridone treatments control the there are no better examples of the impacts of susceptible clones, leaving the more tolerant plants hydrilla maintenance on the uses of water bodies to expand. and, visa versa, the impacts of the uses of water bodies on the ability to control hydrilla. Water Increasing fluridone resistance can be compen- levels and discharge flows for each of these reser- sated by increasing herbicide rates, but this trans- voirs are manipulated by water control structures lates into escalating management costs, reduced with prescribed schedules designed and closely selectivity for surrounding native plants, and in adhered to by the USACE and SFWMD. These five extreme cases, failure to control hydrilla if the lakes contain 44 percent of the state’s estimated elevated herbicide concentration cannot be main- hydrilla tuber bank. As much as half of the BIPM’s tained for approximately 90-100 days. To adapt to annual budget has been spent managing hydrilla in these evolving conditions, four workshops were the Kissimmee Chain and Lake Istokpoga. held during 2004-2007 to identify additional research needs and to revise hydrilla management The waters of the Kissimmee Chain and Lake strategies. There was concurrence among manag- Istokpoga are used for flood control, navigation and ers and researchers at the meetings that, pending irrigation. They are world renowned for recre- developmant of new large-scale hydrilla manage- ational fishing, provide habitat for waterfowl 37 and opportunities for hunting, and are home to rare at 49 ft NGVD was about $2.5 million in 2004; and endangered species like eagles, storks, cranes about $9 million at the full pool winter stage of 55 and Kites. The five lakes, with a ft NGVD. collective surface area of 92,200 acres, have supported hydrilla standing crops totalling nearly Fish spawning conditions are optimal at 55 ft 70,000 acres. Successful management is impera- NGVD by allowing bedding and fry survival in the tive or hydrilla will fill the water columns, bring- expanded littoral vegetation zone. Winter is the ing recreation and navigation to a standstill, peak tourist use season and lower water levels reducing the capacity for irrigation water supply hamper access and navigation. Additionally, there and flood protection, reducing oxygen content that is concern that lowering lake levels too quickly could lead to massive fish kills and accelerating may add too much fresh water in downstream the filling in of these already shallow waters. estuaries. Enough water must be retained in the Ironically, annual hydrilla management costs are reservoirs to provide continuous flows to restored escalated and success jeopardized by the very uses downstream marshes. However, these discharges that hydrilla control is conducted to preserve. siphon off thousands of dollars of fluridone-treated water each day of the 90-100 day treatment re- The most opportune time to control hydrilla is in gimes. Thousands of pounds of herbicide must be late winter through early spring. Hydrilla is ac- added to compensate for the loss of active ingredi- tively growing and most native plants are dormant ent. If the herbicide concentration falls below the allowing for selective control using herbicides. threshold hydrilla control level, success of the Once hydrilla reaches the surface in the summer, entire treatment is jeopardized. growth slows requiring more herbicide and longer exposure time. Water temperatures are cool and Plant, water, and fish and wildlife managers hold more oxygen than in the summer allowing for attended a series of meetings during 2004-2007 to more of a buffer during hydrilla decomposition. discuss the impacts of increasing difficulties Rainfall chances and quantities are generally lower controlling hydrilla on the ability to supply water in the winter and spring than during the summer and provide flood control in the large central tropical storm season that would flush out herbi- Florida reservoirs. These were steps toward cide-treated waters. Sunlight that breaks down amending current water schedules and developing fluridone herbicide is less intense in the winter windows of opportunity that accommodate the uses allowing for longer exposure time to hydrilla. within the Kissimmee Chain and Lake Istokpoga as Finally, controlling hydrilla in the winter and well as the need for water level fluctuations for spring prevents hydrilla from forming mats at the hydrilla control and periodic drawdowns for surface that prevent or hamper the uses of the habitat enhancement. infested waters later in the summer.

Several important functions within these waters combine to increase hydrilla control costs and lessen chances for management success. Lakes are held at their highest levels during the winter to store water for irrigation. Increased water levels in Lake Toho can triple the amount of herbicide Water flows from Lake Toho (via the canal upper right) needed as well as management costs to achieve the through this hydrilla mat in Lake Cypress in the Kissimmee Chain of Lakes. Managers are aware that dense hydrilla same level of control if the waters were at extreme growths impede uses like navigation and impair fisheries, low pool stage. For example, the cost to treat and are working with engineers to determine effects on flood control capacity. 15,000 acres of hydrilla with fluridone herbicide 38 Operations – Floating Plants

Water hyacinth and water lettuce are two of and local governments and several private the fastest growing plants in the world. This companies were established to reduce combined with their floating nature and ability floating plants during the winter of 2005- to coalesce almost overnight into large mats 2006 and intensive management continued that interfere with human and environmental throughout most of 2006. This effort uses and functions in public waters have resulted in returning floating plant levels to earned these floating plants the highest near record lows by the end of FY 06-07. management priority in Florida’s aquatic plant control program. About 21,900 acres of floating plants were controlled in public waters in FY 06-07: Record low floating plant levels were • approximately 60:40 water hyacinth: achieved during the drought years of the late water lettuce 1990s. Alternating drying and reflooding • 15,200 fewer acres than in FY 05-06 stimulates water hyacinth and water lettuce • 8,000 fewer acres than the previous seed germination. As waters refilled during five-year average the early 2000s, floating plant populations soared from new growth and from plants that Managers spent about $3.2 million control- were flushed out of marshes that were ling floating plants during FY 06-07: inaccessible during the drought. • $0.3 million less than FY 05-06 • $0.05 million less than the previous No sooner was this growth reduced than five-year average another surge in the floating plant population • about 33 percent spent by the USACE occurred, associated with four major on Lake Okeechobee and the St. Johns hurricanes during 2004. Private sector crews River and its tributaries teamed up with government contractors in 2005 and 2006 and reduced floating plants to Inventories in 2007 recorded 3,342 acres of near pre-hurricane levels. While floating plant floating plants in Florida public waters - acreage nearly quadrupled in 2005, about 65 2,240 fewer acres than 2006: percent of this growth occurred in just two • found in 247 public waters (57%) systems - the St. Johns River and Lake inventoried Okeechobee. Contracts among federal, state • floating plants are under maintenance control in 98 percent of Florida’s 2007 Floating Plant Population Ranges waters (in acres) in Florida’s Public Waters • 1,458 acres of water hyacinth were re- ported in 216 water bodies 160 140 - 99 percent under maintenance 120 control 100 - 198 water bodies (92%) contained 80 60 10 or less acres of water hyacinth 40 • 1,884 acres of water lettuce were re-

# of Populations 20 0 ported in 159 water bodies <1 1-10 10-100 100-500 >500 - 97 percent under maintenance Floating Plant Acre Ranges control - 141 water bodies (82%) contained 10 or less acres of water lettuce 39 Operations – Hydrilla

Florida’s hydrilla control program focuses on lowest statewide hydrilla standing crop eradicating or containing pioneer colonies (20,400 acres) recorded since the BIPM began before they become large-scale maintenance conducting annual inventories in 1982, and the projects and reducing established populations lowest overall control effort needed since the to sustain the uses and functions of public late 1990s to achieve and sustain this low waters. Hydrilla has infested as many as 346 standing crop. public lakes and rivers. That number was About 13,570 acres of hydrilla were treated in reduced to 199 in 2007 - 69 percent of which public water bodies during FY 06-07: covered 10 acres or less. Most of the hydrilla • 4,200 fewer acres than in FY 05-06 control budget is spent on 20-25 waters; • about 9,000 fewer acres than the among them are some of the largest and most previous 5-year average important in the state. Managers spent about $6.8 million treating Hydrilla first appeared in the large lakes and hydrilla during FY 06-07: reservoirs of central Florida during the late • about $1.7 million less than FY 05-06 1970s, reaching peak abundance in the middle • about $6.9 million less than the previ- 1990s. Increasing resistance to the lone large- ous 5-year average scale hydrilla management tool available, fluridone herbicide, resulted in escalating As water levels began to receed and water management costs although the overall clarity improved during 2006, hydrilla like- hydrilla population remained fairly stable. wise began to recover. 2007 inventories found 45,406 acres of hydrilla standing in 199 Large-scale fluridone applications in the public water bodies: spring and summer of 2004 were moderately • a 13,600 acre increase over 2006 successful in controlling and suppressing - hydrilla infested 290 public waters hydrilla in central Florida. However, three during the past seven years major hurricanes affected most of these wa- - tubers may be present in as many as ters during August and September with wind 290 public waters and waves ripping much of the remaining - tubers cover an estimated 81,442 hydrilla standing crop up and depositing it on acres of public water bodies the surrounding uplands. Tannic and turbid - tubers represent the potential for water, and in some cases algae blooms, lim- immediate regrowth ited light penetration, suppressing hydrilla re- • hydrilla is under maintenance control growth through 2005. The result was the in 96 percent of Florida’s public waters

Hydrilla covering Lake Woodruff as water levels decline and 2007 Hydrilla Population Ranges clarity increases - Woodruff is a high priority for FY 07-08. (in acres) in Florida’s Public Waters

120 100 80 60 40 20 # of Populations # of 0 <1 1-10 10-100 100-1,000 >1000 Hydrilla Acre Ranges

40 Operations – Other Plants

Prior to 1994 about $150,000-$350,000 were problems, exceptional drought in south spent annually managing plants other than Florida has created conditions for a new water hyacinth, water lettuce and hydrilla. problem. Torpedograss which can survive in water as deep as 4-5 feet is more prone to • funds were insufficient to control expansion on exposed sediments. Tens of higher priority hydrilla problems thousands of acres of Lake Okeechobee • little was affordable for other invasive sediments were exposed as the lake reached plants record low levels in FY 06-07. Management focus in Lake Okeechobee shifted from float- Inventories in 2007 found 19,000 acres of ing islands to torpedograss in an effort to other invasive plants present in 88 percent of conserve the diverse emergent plant marsh Florida’s public waters. With the exception of community within the levees of this 450,000- about 16,000 acres of torpedograss in Lake acre reservoir. Okeechobee, most populations are small and comingled with native plants making their While less than 200 acres of torpedograss detection and control difficult. were controlled statewide in FY 05-06, nearly 10,500 were controlled at a cost of $1.9 The same climatic conditions that reduced million during FY 06-07. Most of the control hydrilla growth were responsible for generat- was in Lake Okeechobee where management ing floating islands and tussocks whose man- operations will increase in FY 07-08 for agement implications and magnitude sur- torpedograss, West Indian marsh grass, passed even hydrilla control through 2006. phragmites and cattail.

Intensive management during the past three During FY 06-07, $5.8 million were spent years combined with returning drought condi- controlling 14,633 acres of other plants and tions reduced problems associated with float- floating islands and tussocks in Florida public ing islands and tussocks and the urgency for waters. their control. While $9.4 million were spent controlling more than 8,200 acres of floating • 56 percent of the funds were spent islands and tussocks during FY 05-06, fewer controlling 774 acres of floating islands/ than 800 acres required control in FY 06-07 at tussocks a cost of $3.3 million. • 12,043 acres of other plants were controlled including: Although receeding waters allowed managers to overcome floating island and tussock - 10,487 acres of torpedograss - 88 acres of West Indian marsh grass - 8 acres of wild taro - 1 acre of giant salvinia

- 1,459 acres of native and other exotic plants for access, navigation and habitat improvement.

Torpedograss control to conserve the diverse marsh community in lake Okeechobee 41 FY 06-07 Management Statistics Acres of Aquatic Plants Treated and Treatment Expenditures in Florida Public Waters During Fiscal Year 2006-2007 (Data represents compilation of all contractor activities within each water management district) Acres Trtd. Northwest Suwannee St. Johns Southwest S. Florida TOTAL Floating 385 290 8,918 3,679 8,624 21,896 Hydrilla 75 332 3,481 3,376 6,305 13,569 Other Plants 143 4 281 1,043 13,162 14,633 TOTAL 603 626 12,680 8,098 28,091 50,098 Expenditures Northwest Suwannee St. Johns Southwest S. Florida TOTAL Floating $ 43,424 $ 44,526 $ 1,289,702 $ 509,603 $ 1,352,236 $ 3,239,491 Hydrilla 68,217 2,327 2,109,617 1,501,069 3,129,416 6,809,970 Other Plants 51,078 8,198 126,471 1,457,906 4,169,783 5,813,436 TOTAL $ 162,719 $ 55,045 $ 3,525,790 $ 3,468,578 $ 8,651,435 $ 15,862,897

Federal, State and Local Funds Expended during Fiscal Year 2006 - 2007 Managing Aquatic Plants in Florida Public Water Bodies Government / Plant Intercounty Intracounty TOTAL Federal Floating Plants $ 1,080,061 0 $ 1,080,061 Hydrilla 0 0 0 Other Plants 0 0 0 Subtotal $ 1,080,061 0 $ 1,080,061 State Floating Plants $ 2,074,553 $ 59,189 $ 2,133,742 Hydrilla 6,260,866 486,083 6,728,949 Other Plants 5,782,037 26,828 5,808,865 Subtotal $ 14,117,456 $ 554,100 $ 14,671,556 Local Floating Plants 0 $ 25,688 $ 25,688 Hydrilla 0 81,021 81,021 Other Plants 0 4,571 4,571 Subtotal 0 $ 111,280 $ 111,280 TOTAL Floating Plants $ 3,154,614 $ 84,877 $ 3,239,491 Hydrilla 6,260,866 549,104 6,809,970 Other Plants 5,782,037 31,399 5,813,436 GRAND TOTAL $ 15,197,517 $ 665,380 $ 15,862,897

42 Funding Needs The following table lists acres of aquatic • finish controlling tussocks and plants inventoried during 2007 in Florida’s floating islands that are freely 1.25 million acres of public lakes and rivers. drifting in public waters posing The table also includes acres of plants treated threats to navigation, access, bridges and associated costs for FY 06-07 along with and flood control structures estimated acres of plants needing control in • control new infestations of other FY 07-08 and respective cost allocations from invasive plants the FY 07-08 Legislative Spending Authority • increase control of other estab- for this control. In addition to the FY 07-08 lished invasive plant populations hydrilla allocation, the BIPM has about $5.5 million of fluridone herbicide in inventory that In addition to the aquatic plant control alloca- was purchased during previous years but not tion, the BIPM allocated $1.8 million for re- applied due to hurricane effects including high search, monitoring and education related to water and flows and continuing hydrilla sup- improving aquatic plant management. Included pression from tannic and turbid waters and are: 20 research projects, mostly related to algae blooms. biological and herbicide control of invasive plants; mapping projects to estimate water and The FY 07-08 funding allows managers to: plant volumes in hydrilla-infested lakes; and • sustain floating plant maintenance education and outreach projects to increase • sustain hydrilla maintenance and managers’ and public understanding of invasive apply newly registered compounds plant problems, the needs for control and con- for large-scale hydrilla control trol strategies. 2007 FY 06-07 FY 06-07 FY 07-08 FY 07-08 Plant Acres Acres Dollars Est. Control Dollars Present Treated Spent Acres Allocated Hydrilla *81,442 13,569 $ 6,809,970 32,761 $ 15,989,900 Floating plants 3,342 21,896 3,239,491 24,525 3,470,488 Torpedograss 16,234 10,487 1,900,610 5,490 938,846 Wild taro 541 8 2,202 232 40,240 Paragrass 1,109 0 0 80 12,983 Hygrophila 254 0 0 15 10,500 West Indian marsh grass 741 88 6,470 349 54,440 Napiergrass 96 0 0 0 0 Aquatic nightshade 25 0 0 60 10,000 Water spinach 0 1 0 3 2,350 Giant salvinia 0 0 1,730 20 3,000 Other plants **222,703 1,459 634,685 4,297 1,539,760 Floating tussocks and islands 774 3,267,739 936 1,543,250 TOTAL ESTIMATE 335,346 48,282 $ 15,862,897 68,765 $ 23,615,717

* estimated area impacted by hydrilla tubers; **2003 record, Other Plants not quantified in 2007 43 APPENDIX I –Key

Aquatic Plant Management Operations in Florida Public Waters for FY 06-07 and Projected Aquatic Plant Management Needs for FY 07-08

Water Body Name of public lake or river

Water Acres Acres of public lake or river

Contractor Agency or company that conducts aquatic plant management A&L Aquatics A & L Aquatics, Inc. Applied Aquatic Applied Aquatic Management, Inc. Brevard Brevard County Citrus Citrus County FL Environmental Florida Environmental Consultants, Inc. FWC Florida Fish & Wildlife Conservation Commission Highlands Highlands County Hillsborough Hillsborough County Lake Lake County NaturChem NaturChem, Inc. Orange Orange County Palm Beach Palm Beach County Polk Polk County Private Private companies supervised by FDEP SFWMD South Florida Water Management District SJRWMD St. Johns River Water Management District SWFWMD Southwest Florida Water Management District USACE US Army Corps of Engineers Volusia Volusia County USACOE US Army Corps of Engineers Weedbusters Weedbusters, Inc.

County County in which the water body lies (Note: many water bodies lie in more than one county, for example: the St. Johns River lies in 11 counties, but for convenience has been assigned to St. Johns County)

WMD Water Management District in which the water body lies

Plant Type F = Floating Plants = water hyacinth and/or water lettuce H = Hydrilla

FY 06-07 Acres Treated Acres of plants managed during fiscal year 06-07

FY 06-07 Dollars Spent Dollars spent managing plants during fiscal year 06-07

FY 07-08 Acres Ctrl Acres of plants for which control funds have been allocated during Allocated fiscal year 07-08 under DEP’s Cooperative Program

FY 07-08 Contractor Dollars allocated to manage plants during fiscal year 07-08 Dollars Allocated FY 07-08 Water FY 06-07 Acres FY 07-08 Body Acres FY 06-07 Ctrl Dollars

Water Body Acres Contractor County WMD Plant Type Treated Dollars Spent Allocated Allocated Adalaide, Lake 96 Highlands Highlands SW H 0 172.33 1 730.00 Adalaide, Lake 96 Highlands Highlands SW S.cubensis 0 0.00 1 95.00 371 Hillsborough HillsboroughSW F 60.35 16,560.48 45 10,369.80 Alfred, Lake 736 Polk Polk SW F 0 257.06 10 1,500.00 Alfred, Lake 736 Polk Polk SW H 2.5 166.43 5 3,500.00 Alligator Lake 338 FL Environmental Columbia SR F 11.6 2,781.22 45 5,250.00 Alligator Lake 3406 SFWMD Osceola SF F 8.93 1,958.42 20 2,800.00 Alligator Lake 3406 SFWMD Osceola SF H 0 0.00 10 7,000.00 Alligator Lake 338 FL Environmental Columbia SR Frogsbit 0 0.00 10 2,000.00 Alligator Lake 338 FL Environmental Columbia SR Pennywort 0 0.00 15 3,000.00 Alligator Lake 3406 SFWMD Osceola SF S.cubensis 0 0.00 5 750.00 Alligator Lake 338 FL Environmental Columbia SR Taro 0 0.00 1 200.00 Alligator Lake 3406 SFWMD Osceola SF Torpedogras 0 308.56 100 17,000.00 Alligator Lake 338 FL Environmental Columbia SR Willows 0 0.00 5 1,000.00 Alligator, Lake NaturChem SJ 540.59 Alto, Lake 540 FL Environmental Alachua SR F 1 258.36 5 500.00 Alto, Lake 540 FL Environmental Alachua SR H 0 0.00 0.1 65.00 Alto, Lake 540 FL Environmental Alachua SR Nuphar 0 0.00 1 200.00 Alto, Lake 540 FL Environmental Alachua SR Salvinia 0 0.00 1 200.00 200 SWFWMD Pasco SW F 0 0.00 11 2,200.00 Anclote River 200 SWFWMD Pasco SW snag trees 0.00 1,000.00 Annie, Lake 539 Polk Polk SW F 0 192.81 2 300.00 Annie, Lake 539 Polk Polk SW H 0 0.00 5 3,500.00 Apopka, Lake 30671 SJRWMD Orange SJ F 22 3,838.45 50 8,000.00 Apopka, Lake 30671 SJRWMD Orange SJ H 77 59,845.79 150 113,750.00 Apopka, Lake 30671 SJRWMD Orange SJ cattails 44 6,775.28 50 7,500.00 Apopka, Lake 30671 SJRWMD Orange SJ Tussocks 30 5,165.85 50 15,000.00 Apopka-Beauclair C 49 Lake Lake SJ F 25.75 3,512.44 70 10,500.00 Apopka-Beauclair C 49 Lake Lake SJ H 14.82 832.42 25 15,000.00 Apopka-Beauclair C 49 Lake Lake SJ cattails 0 0.00 3.5 525.00 Apopka-Beauclair C 49 Lake Lake SJ Exotic Nymph 0.00 0.5 75.00 Apopka-Beauclair C 49 Lake Lake SJ Paragrass 0 0.00 3 450.00 Apopka-Beauclair C 49 Lake Lake SJ Torpedogras 0 0.00 1 150.00 Apthorpe, Lake 219 Highlands Highlands SW H 0 0.00 1 730.00 Apthorpe, Lake 219 Highlands Highlands SW S.cubensis 0 0.00 1 95.00 Apthorpe, Lake 219 Highlands Highlands SW Torpedogras 0 0.00 1 85.00 Arbuckle Creek 120 Highlands Highlands SW F 274 27,310.43 300 28,500.00 Arbuckle Creek 120 Highlands Highlands SW H 0 0.00 1 730.00 Arbuckle Creek 120 Highlands Highlands SW hymenachne 0 0.00 50 4,500.00 Arbuckle Creek 120 Highlands Highlands SW snag trees 0 5,479.46 5,000.00 Arbuckle, Lake 3828 Polk Polk SF F 40 6,134.65 400 60,000.00 Arbuckle, Lake 3828 Polk Polk SF H 0 0.00 5 3,500.00 Ariana, Lake 1026 Polk Polk SW F 0 128.53 5 750.00 Ariana, Lake 1026 Polk Polk SW H 13 261.22 25 17,500.00 Ashby, Lake 1030 Volusia Volusia SJ F 36.7 2,861.80 20 3,600.00 Ashby, Lake 1030 Volusia Volusia SJ Alligatorwee 0 0.00 8 960.00 Ashby, Lake 1030 Volusia Volusia SJ Cattails 0 0.00 4 480.00 Ashby, Lake 1030 Volusia Volusia SJ Parrots-feath 0 0.00 8 960.00 Ashby, Lake 1030 Volusia Volusia SJ Phragmites 0.00 1 120.00 Ashby, Lake 1030 Volusia Volusia SJ S.cubensis 0 0.00 10 1,600.00 Ashby, Lake 1030 Volusia Volusia SJ Taro 0.1 145.04 5 600.00 Ashby, Lake 1030 Volusia Volusia SJ Torpedograss 0.00 5 600.00 Baker Creek 20 Hillsborough HillsboroughSW F 4.5 1,485.10 25 5,761.00 Baldwin, Lake 196 Orlando Orange SJ F 0 0.00 10 1,500.00 Baldwin, Lake Orange Orange SJ H 0 0.00 Baldwin, Lake 197 Orlando Orange SJ H 0 0.00 196 166,600.00 Baldwin, Lake 198 Orlando Orange SJ Torpedogras 0 0.00 10 1,500.00 Banana Lake 342 Polk Polk SW F 29 4,970.48 50 7,500.00 Banana Lake 342 Polk Polk SW H 9 3,016.36 30 21,000.00 Barton canal 10 Brevard Brevard SJ F 6.5 804.07 20 1,974.00 Barton canal 10 Brevard Brevard SJ Peppers 0 0.00 1 99.03 FY 07-08 Water FY 06-07 Acres FY 07-08 Body Acres FY 06-07 Ctrl Dollars

Water Body Acres Contractor County WMD Plant Type Treated Dollars Spent Allocated Allocated Beauclair, Lake 1111 Lake Lake SJ F 0.5 333.50 20 3,000.00 Beauclair, Lake 1111 Lake Lake SJ H 2.08 281.67 10 6,000.00 Beauclair, Lake 1111 Lake Lake SJ cattails 0 0.00 1 150.00 Beauclair, Lake 1111 Lake Lake SJ Exotic Nymph 0.00 0.5 75.00 Blanche, Lake 121 Orange Orange SJ F 1 243.44 5 480.00 Blanche, Lake 121 Orange Orange SJ H 0 828.19 12 16,750.00 6555 SJRWMD SJ F 75 11,843.97 100 16,000.00 Blue Cypress Lake 6555 SJRWMD Indian River SJ H 0 0.00 1 690.00 Blue Cypress Lake 6555 SJRWMD Indian River SJ hymenachne 0 0.00 1 160.00 Blue Lake 118 Polk Polk SW F 0 171.40 2 300.00 Blue Lake 118 Polk Polk SW H 0 46.42 2 1,400.00 Blue Lake 62 Volusia Volusia SJ F 2.4 387.96 10 1,600.00 Blue Lake 62 Volusia Volusia SJ H 0 0.00 10 2,500.00 Blue Lake 62 Volusia Volusia SJ Parrots-feath 0 0.00 4 480.00 Blue Lake 62 Volusia Volusia SJ S.cubensis 0 0.00 4 640.00 Bonnet, Lake 260 Highlands Highlands SW F 2 220.62 1 95.00 Bonnet, Lake 260 Highlands Highlands SW Nuphar 0 0.00 3 255.00 Bonnet, Lake 260 Highlands Highlands SW S.cubensis 2 290.82 1 95.00 Bonny, Lake 354 Polk Polk SW F 0.25 523.32 10 1,500.00 Bonny, Lake 354 Polk Polk SW H 13 167.91 50 35,000.00 Bourbeau Park 1.5 Brevard Brevard SJ F 1 149.55 3 500.16 220 SWFWMD SW F 142.3 23,065.98 100 20,000.00 Braden River 220 SWFWMD Manatee SW H 0 0.00 10 8,000.00 Braden River 220 SWFWMD Manatee SW Coontail 3.4 1,970.96 10 5,000.00 Braden River 220 SWFWMD Manatee SW hymenachne 0 0.00 10 2,000.00 Braden River 220 SWFWMD Manatee SW I. Fistulosa 0 0.00 2 400.00 Braden River 220 SWFWMD Manatee SW Paspalum 5.7 951.92 8 1,600.00 Brick Lake 616 SFWMD Osceola SF F 0.6 1,136.75 5 700.00 Brick Lake 616 SFWMD Osceola SF snag trees 0 38,100.00 10,000.00 Bryant, Lake 767 NaturChem Marion SJ F 1 381.27 2 250.00 Bryant, Lake 767 NaturChem Marion SJ H 0 0.00 0.4 400.00 Buckeye Lake 71 Polk Polk SW F 0 299.91 2 300.00 Buckeye Lake 71 Polk Polk SW H 0 46.64 1 700.00 Buffum, Lake 1543 Polk Polk SW F 6 2,108.63 30 4,500.00 Buffum, Lake 1543 Polk Polk SW H 0 0.00 1 700.00 Bugg Springs 7 Lake Lake SJ F 6 575.39 20 3,000.00 Bugg Springs 7 Lake Lake SJ H 0 91.00 20 12,000.00 Bugg Springs 7 Lake Lake SJ Alligatorwee 0 0.00 5 750.00 Bugg Springs 7 Lake Lake SJ Pennywort 7 216.37 10 1,500.00 Bulow Creek 4334 Applied Aquatic Flagler SJ F 0 0.00 30 4,500.00 Bulow Creek 4334 Applied Aquatic Flagler SJ H 0 0.00 5 800.00 Bulow Creek 4335 Applied Aquatic Flagler SJ B. Peppers 0.25 800.83 4 600.00 Bulow Creek 4336 Applied Aquatic Flagler SJ tallow 0.00 1 150.00 Butler, Lake 420 FL Environmental Union SR F 0 0.00 10 1,000.00 Butler, Lake 420 FL Environmental Union SR H 0 0.00 0.1 65.00 Butler, Lake 420 FL Environmental Union SR tallow 0 0.00 2 400.00 Butler, Lake 420 FL Environmental Union SR Torpedogras 0 0.00 10 2,000.00 Butler, Lake 1665 Orange Orange SF F 1 243.44 10 960.00 Butler, Lake 1665 Orange Orange SF H 10.75 13,943.56 25 34,900.00 C-35 Toho-Cypress 81 SFWMD Osceola SF F 0 0.00 15 2,100.00 C-35 Toho-Cypress 81 SFWMD Osceola SF cattails 0 0.00 2 300.00 C-36 Cyprs-Hatch 40 SFWMD Osceola SF F 0 0.00 10 1,400.00 C-37 Hatch-Kiss 71 SFWMD Osceola SF F 0 0.00 10 1,400.00 C-37 Hatch-Kiss 71 SFWMD Osceola SF paragrass 0 0.00 1.5 150.00 C-37 Hatch-Kiss 71 SFWMD Osceola SF Smartweed 0 0.00 3 300.00 C-37 Hatch-Kiss 71 SFWMD Osceola SF Torpedogras 0 0.00 1.5 150.00 Cannon Lake 336 Polk Polk SW F 0 64.27 3 450.00 Cannon Lake 336 Polk Polk SW H 121 4,983.69 250 175,000.00 Carlton, Lake 382 Lake Lake SJ F 0 121.91 3 450.00 Carlton, Lake 382 Lake Lake SJ cattails 0 0.00 1 150.00 FY 07-08 Water FY 06-07 Acres FY 07-08 Body Acres FY 06-07 Ctrl Dollars

Water Body Acres Contractor County WMD Plant Type Treated Dollars Spent Allocated Allocated Carr Lake 400 Applied Aquatic Leon NW F 7 883.15 10 1,000.00 Carr Lake 400 Applied Aquatic Leon NW H 0 0.00 10 10,000.00 Carrie, Lake 65 Highlands Highlands SW F 0 0.00 2 190.00 Carrie, Lake 65 Highlands Highlands SW Taro 0 0.00 2 190.00 Carter Road Park 150 Polk Polk SW F 0 0.00 10 1,500.00 Carter Road Park 150 Polk Polk SW H 0 0.00 30 21,000.00 Catfish Crk & canals 30 Highlands Highlands SW F 0 0.00 1 95.00 Catfish Crk & canals 30 Highlands Highlands SW Nuphar 0 0.00 1 85.00 Catfish Crk & canals 30 Highlands Highlands SW snag trees 0 0.00 1,000.00 Center, Lake 410 SFWMD Osceola SF F 6.2 1,821.41 20 2,800.00 Center, Lake 410 SFWMD Osceola SF S.cubensis 3 967.29 5 750.00 Chase, Lake 135 Orange Orange SF F 3 533.62 10 960.00 Chase, Lake 135 Orange Orange SF H 0 147.50 6 8,376.00 1000 Citrus Citrus SW F 1.5 1,340.07 10 3,250.00 Chassahowitzka River 1000 Citrus Citrus SW H 0 92.68 5 4,875.00 Chassahowitzka River 1000 Citrus Citrus SW Giant reed 0 0.00 1 150.00 Chassahowitzka River 1000 Citrus Citrus SW Lyngbya 0 248.52 2 4,800.00 Cherry, Lake 396 Lake Lake SJ F 0.375 484.79 10 1,500.00 Cherry, Lake 396 Lake Lake SJ H 0 239.54 1 600.00 Cherry, Lake 396 Lake Lake SJ S.cubensis 0 0.00 10 1,500.00 Clark Lake 33 Palm Beach Palm Beach SF F 7.25 1,886.28 10 2,622.00 Clark Lake 320 Brevard Brevard SJ F 2 238.67 5 931.50 Clark Lake 33 Palm Beach Palm Beach SF H 39.02 57,940.71 50 79,007.00 Clark Lake 320 Brevard Brevard SJ cattails 0 0.00 1 262.35 Clark Lake 33 Palm Beach Palm Beach SF Nymph cris 0 0.00 1 267.00 Clay Lake 467 Highlands Highlands SW F 0 0.00 1 95.00 Clay Lake 467 Highlands Highlands SW H 0 595.72 50 36,500.00 Clay Lake 467 Highlands Highlands SW S.cubensis 0 0.00 1 95.00 Clay Lake 467 Highlands Highlands SW snag trees 0 4,119.73 1,000.00 Clear Lake 358 Orlando Orange SJ F 0 0.00 20 3,000.00 Clear Lake 359 Orlando Orange SJ H 0 0.00 300 255,000.00 Clear Lake 360 Orlando Orange SJ Torpedogras 0 0.00 20 3,000.00 Clinch, Lake 1207 Polk Polk SW F 1 676.74 5 750.00 Colby, Lake 103 Volusia Volusia SJ F 0.7 52.84 8 1,440.00 Colby, Lake 103 Volusia Volusia SJ S.cubensis 0.3 49.09 8 1,280.00 Conine, Lake 236 Polk Polk SW F 1 271.55 5 750.00 Conine, Lake 236 Polk Polk SW H 135 49,679.98 125 87,500.00 Conway, Lake 1767 Orange Orange SF F 8 1,308.24 15 1,440.00 Conway, Lake 1767 Orange Orange SF H 0 0.00 20 27,920.00 Conway, Lake 1767 Orange Orange SF Torpedograss 0.00 4 236.00 Cook, Lake 20 Lake Lake SJ F 0.5 137.07 6 900.00 Cook, Lake 20 Lake Lake SJ H 0 0.00 1 600.00 Cook, Lake 20 Lake Lake SJ S.cubensis 0 0.00 3 450.00 Coon Lake 148 SFWMD Osceola SF F 6.6 1,268.92 15 2,100.00 Coon Lake 148 SFWMD Osceola SF H 0 0.00 2 2,200.00 Coon Lake 148 SFWMD Osceola SF S.cubensis 0 0.00 10 1,500.00 143 Lake Lake SJ F 0.125 150.03 5 750.00 Crescent Lake 143 Lake Lake SJ H 0.47 114.85 5 3,000.00 Crooked Lake 5538 Polk Polk SW F 35.5 5,358.10 350 52,500.00 Crooked Lake 5538 Polk Polk SW H 0 0.00 2 1,400.00 900 Applied Aquatic Franklin NW F 0.00 20 2,000.00 NaturChem SJ H 0.75 521.25 Crystal and Blue Lakes 80 NaturChem Marion SJ Salvinia mole 1.27 1,729.84 20 3,000.00 1650 Citrus Citrus SW F 26.5 9,704.26 40 11,500.00 Crystal River 1650 Citrus Citrus SW H 0 0.00 10 9,750.00 Crystal River 1650 Citrus Citrus SW Lyngbya 282.89 315,374.69 180 350,000.00 Crystal River 1650 Citrus Citrus SW Milfoil 5.41 1,606.77 50 20,000.00 Crystal, Lake 32 Polk Polk SW F 0 171.37 2 300.00 Cypress Lake 4097 SFWMD Osceola SF F 13.2 2,492.47 300 42,000.00 Cypress Lake 4097 SFWMD Osceola SF H 827.7 420,762.82 2000 87,000.00 FY 07-08 Water FY 06-07 Acres FY 07-08 Body Acres FY 06-07 Ctrl Dollars

Water Body Acres Contractor County WMD Plant Type Treated Dollars Spent Allocated Allocated Cypress Lake 4097 SFWMD Osceola SF Tussocks 0 0.00 Daisy,Lake 133 Polk Polk SW F 3 512.17 2 300.00 Dal Housie, Lake 243 Lake Lake SJ F 0 159.83 0.5 75.00 Dal Housie, Lake 243 Lake Lake SJ H 25.98 Damon, Lake 300 Highlands Highlands SW F 0 0.00 3 285.00 Damon, Lake 300 Highlands Highlands SW H 0 0.00 1 730.00 Damon, Lake 300 Highlands Highlands SW S.cubensis 0 0.00 1 95.00 David, Lake 49 Lake Lake SJ F 0 86.70 0.5 75.00 David, Lake 49 Lake Lake SJ H 0 191.05 0.5 300.00 Davis Lake 10 Applied Aquatic Bay NW H 0.00 5 500.00 Dead River 148 Lake Lake SJ F 1.28 1,202.49 10 1,500.00 Dead River 148 Lake Lake SJ H 9.74 816.79 20 12,000.00 Dead River 148 Lake Lake SJ Alligatorwee 0 0.00 1 150.00 Dead River 148 Lake Lake SJ cattails 0 0.00 1 150.00 Dead River 148 Lake Lake SJ Pennywort 0 0.00 3 450.00 Deaton, Lake 778 SWFWMD Sumter SW H 0.1 241.88 1 800.00 Deer Lake 125 Polk Polk SW F 1.5 514.62 2 300.00 Deer Lake 125 Polk Polk SW H 0 192.44 25 17,500.00 Deeson,Lake 117 Polk Polk SW F 0 0.00 2 300.00 Deeson,Lake 117 Polk Polk SW H 0 0.00 25 17,500.00 Delancy, Lake 342 NaturChem Marion SJ F 0.67 768.02 2 200.00 Delancy, Lake 342 NaturChem Marion SJ H 2.56 3,667.20 5 3,500.00 Deleon Springs Applied Aquatic B,O,S,V SJ H 4 329.09 Deleon Springs Applied Aquatic B,O,S,V SJ Tussocks 0 0.00 Denham, Lake 269 Lake Lake SJ F 0 0.00 12 1,800.00 Denham, Lake 269 Lake Lake SJ Pennywort 0 0.00 5 750.00 Dexter, Lake 1902 Applied Aquatic V, L SJ H 49.1 1,300.00 100 16,000.00 Dias, Lake 711 Volusia Volusia SJ F 0.65 562.85 10 1,800.00 Dias, Lake 711 Volusia Volusia SJ Torpedogras 0 0.00 6 870.00 Dinner Lake 379 Highlands Highlands SW F 0 0.00 2 190.00 Dinner Lake 379 Highlands Highlands SW H 0 0.00 1 730.00 Disston, Lake 1844 NaturChem Flagler SJ F 4.5 658.88 20 2,900.00 Disston, Lake 1844 NaturChem Flagler SJ Torpedogras 2.3 582.93 15 2,175.00 Dora Canal 10 Lake Lake SJ F 3.125 1,220.30 8 1,200.00 Dora Canal 10 Lake Lake SJ H 20.42 621.70 53 31,800.00 Dora Canal 10 Lake Lake SJ Alligatorwee 0 0.00 1 150.00 Dora Canal 10 Lake Lake SJ Pennywort 0 0.00 2 300.00 Dora, Lake 4475 Lake Lake SJ F 0 432.97 5 750.00 Dora, Lake 4475 Lake Lake SJ H 0.604 514.56 3 1,800.00 Dora, Lake 4475 Lake Lake SJ cattails 0 0.00 1 150.00 Dorr, Lake 1533 Lake Lake SJ F 6.75 769.36 15 2,250.00 Dorr, Lake 1533 Lake Lake SJ H 0 0.00 0.5 300.00 Dorr, Lake 1533 Lake Lake SJ taro 0 0.00 1 150.00 Dorr, Lake 1533 Lake Lake SJ Torpedogras 0 0.00 1 150.00 Down, Lake 872 Orange Orange SF F 0 0.00 10 960.00 Down, Lake 872 Orange Orange SF H 0.25 2,497.00 25 34,921.94 Eagle Lake 651 Polk Polk SW F 0 321.33 5 750.00 Eagle Lake 651 Polk Polk SW H 0 46.64 3 2,100.00 East Lk Toho. 12546 SFWMD Osceola SF F 104.01 22,309.88 400 56,000.00 East Lk Toho. 12546 SFWMD Osceola SF H 0 0.00 50 13,500.00 East Lk Toho. 12546 SFWMD Osceola SF Hygrophila 0 0.00 15 10,500.00 East Lk Toho. 12546 SFWMD Osceola SF Limnoph 0 0.00 50 35,000.00 Eaton, Lake 307 NaturChem Marion SJ F 17 3,243.28 35 4,375.00 Eaton, Lake 307 NaturChem Marion SJ H 7.51 7,930.35 8 8,000.00 Eaton, Lake 307 NaturChem Marion SJ Tussocks 0 0.00 10 2,000.00 Echo,Lake 69 Polk Polk SW F 0 149.96 2 300.00 Echo,Lake 69 Polk Polk SW H 0 0.00 1 700.00 Econlockhatchee R. SJRWMD Seminole SJ F 0 0.00 1 160.00 Elbert, Lake 173 Polk Polk SW F 0 85.69 2 300.00 Elbert, Lake 173 Polk Polk SW H 14 580.95 60 42,000.00 FY 07-08 Water FY 06-07 Acres FY 07-08 Body Acres FY 06-07 Ctrl Dollars

Water Body Acres Contractor County WMD Plant Type Treated Dollars Spent Allocated Allocated Elbow Creek 5 Brevard Brevard SJ F 0.5 105.85 1 217.04 Ella, Lake 467 Lake Lake SJ F 0 148.04 0.5 75.00 Ella, Lake 467 Lake Lake SJ H 7.81 752.00 10 6,000.00 Ella, Lake 467 Lake Lake SJ cattails 0.00 15 2,250.00 Eloise, Lake 1160 Polk Polk SW F 12.25 1,682.87 10 1,500.00 Eloise, Lake 1160 Polk Polk SW H 122.75 31,606.83 60 42,000.00 Emeralda Marsh area 2 SJRWMD Lake SJ F 10 3,206.90 50 5,000.00 Emeralda Marsh area 2 SJRWMD Lake SJ H 83.75 7,743.02 200 130,000.00 Emeralda Marsh Area 4 SJRWMD Lake SJ F 0 0.00 100 10,000.00 Emeralda Marsh Area 4 SJRWMD Lake SJ H 0 134,810.00 300 195,000.00 Emma, Lake 175 Lake Lake SJ F 0 187.25 4 600.00 Emma, Lake 175 Lake Lake SJ H 0 91.47 2 1,200.00 Emma, Lake 175 Lake Lake SJ S.cubensis 0 0.00 5 750.00 Eustis, Lake 7806 Lake Lake SJ F 12.092 6,114.28 28 4,200.00 Eustis, Lake 7806 Lake Lake SJ H 924.383 11,485.28 900 50,000.00 Eustis, Lake 7806 Lake Lake SJ cattails 0.12 176.89 1 150.00 Eva Lake 173 Polk Polk SW F 0 257.06 2 300.00 Fairview, Lake 401 Orange Orange SJ F 0 0.00 2 192.00 Fairview, Lake 401 Orange Orange SJ H 0 165.56 10 13,960.00 Fairview, Lake 401 Orange Orange SJ Nymph cris 0 0.00 5 2,000.00 Fannie, Lake 829 Polk Polk SW F 4 1,067.08 75 11,250.00 Fannie, Lake 829 Polk Polk SW H 22.75 373.14 200 140,000.00 Fish Lake 221 SFWMD Osceola SF F 4 1,242.74 10 1,400.00 Fish Lake 221 SFWMD Osceola SF H 0 0.00 1 1,100.00 Fish Lake 221 SFWMD Osceola SF cattails 0 0.00 1 150.00 Fish Lake 221 SFWMD Osceola SF Hygrophila 0 0.00 Fish Lake 221 SFWMD Osceola SF Paragrass 0 0.00 1 150.00 Fish Lake 221 SFWMD Osceola SF Pickerelweed 0 0.00 1 150.00 Fish, Lake 29 Orange Orange SJ F 0 0.00 1 96.00 Fish, Lake 29 Orange Orange SJ H 0 98.34 2 2,792.00 Fish, Lake 29 Orange Orange SJ Cyperus papyrus 0.00 1 96.00 Fisheating Creek 280 SFWMD Hendry SF F 0 0.00 100 13,000.00 Fisheating Creek 280 SFWMD Hendry SF hymenachne 0 0.00 50 6,500.00 Fisheating Creek 280 SFWMD Hendry SF Paragrass 0 0.00 Fisheating Creek 280 SFWMD Hendry SF Nig 0 0.00 Florence Canal &Lake 4 Brevard Brevard SJ F 18 2,215.50 20 3,433.20 Fox Lake 165 Brevard Brevard SJ F 23 3,364.64 30 4,618.50 Fox Lake 165 Brevard Brevard SJ H 3 1,829.59 10 6,350.00 Fox Lake 165 Brevard Brevard SJ cattails 10 1,475.13 5 438.60 Fox Lake 165 Brevard Brevard SJ Torpedograss 0.00 2 600.00 Francis, Lake 26 FL Environmental Madison SR F 0 0.00 1 100.00 Francis, Lake 539 Highlands Highlands SW F 0 0.00 2 190.00 Francis, Lake 539 Highlands Highlands SW H 0 0.00 1 730.00 Francis, Lake 539 Highlands Highlands SW cattails 0 0.00 0.5 42.50 Francis, Lake 539 Highlands Highlands SW D.Papyrs 1 143.80 2 190.00 Francis, Lake 539 Highlands Highlands SW S.cubensis 0 0.00 1 95.00 Francis, Lake 539 Highlands Highlands SW snag trees 0 0.00 1,000.00 Ft. Meade Pits 28 Polk Polk SW F 0 0.00 5 750.00 Ft. Meade Pits 28 Polk Polk SW H 0 0.00 5 3,500.00 Gant, Lake&Canal 150 SWFWMD Sumter SW F 24 4,482.07 30 6,000.00 Gant, Lake&Canal 150 SWFWMD Sumter SW H 4.5 2,779.62 2 1,600.00 Gant, Lake&Canal 150 SWFWMD Sumter SW cattails 0 0.00 15 3,000.00 Gant, Lake&Canal 150 SWFWMD Sumter SW Nuphar 0 0.00 2 500.00 Garfield, Lake 655 Polk Polk SW F 34.5 5,502.60 50 7,500.00 Garfield, Lake 655 Polk Polk SW H 0 83.96 1 700.00 Gatlin, Lake Orange Orange SJ H 0 295.02 Gator, Lake 114 Polk Polk SW F 3 626.03 10 1,500.00 Gator, Lake 114 Polk Polk SW H 9.33 General lakes Lake Lake SJ H 774,295.50 General lakes Polk Polk SW H 391,987.50 FY 07-08 Water FY 06-07 Acres FY 07-08 Body Acres FY 06-07 Ctrl Dollars

Water Body Acres Contractor County WMD Plant Type Treated Dollars Spent Allocated Allocated Gentry, Lake 1791 SFWMD Osceola SF F 3 1,398.78 20 2,800.00 Gentry, Lake 1791 SFWMD Osceola SF H 0 0.00 30 21,000.00 Gentry, Lake 1791 SFWMD Osceola SF S.cubensis 0 0.00 20 3,000.00 Gentry, Lake 1791 SFWMD Osceola SF Torpedogras 0 0.00 10 1,700.00 Georges Lake 816 NaturChem Putnam SJ F 5 532.17 10 1,000.00 Georges Lake 816 NaturChem Putnam SJ Taro 0 0.00 0.1 20.00 Gibson, Lake 474 Polk Polk SW F 48.5 7,364.19 60 9,000.00 Gibson, Lake 474 Polk Polk SW H 0 0.00 5 3,500.00 Gleason Lake 91 Volusia Volusia SJ F 0 0.00 2 360.00 Gleason Lake 91 Volusia Volusia SJ H 51 6,788.77 25 12,000.00 Gleason Lake 91 Volusia Volusia SJ S. niad 12 1,831.60 Gleason Lake 91 Volusia Volusia SJ S.cubensis 0 0.00 8 1,280.00 Gleason Lake 91 Volusia Volusia SJ Torpedogras 8 554.01 10 1,600.00 Glenada, Lake 150 Highlands Highlands SW F 0 0.00 3 285.00 Glenada, Lake 150 Highlands Highlands SW H 8 5,524.50 10 7,300.00 Grady, Lake 172 Hillsborough HillsboroughSW F 18.75 4,255.16 20 4,608.80 Grady, Lake 172 Hillsborough HillsboroughSW H 0 0.00 1 777.00 Grady, Lake 172 Hillsborough HillsboroughSW Pennywort 0 0.00 2 460.88 Grady, Lake 172 Hillsborough HillsboroughSW Primrose 0 0.00 2 357.34 Grasshopper Lake 213 Lake Lake SJ F 0 122.52 0.5 75.00 Grasshopper Lake 213 Lake Lake SJ H 0 146.35 0.5 300.00 Grassy Lake 59 Polk Polk SW F 0.00 2 300.00 Grassy Lake 60 Polk Polk SW H 0.00 10 7,000.00 Green canal 6 Brevard Brevard SJ F 3 282.88 12 1,253.40 Green canal 6 Brevard Brevard SJ cattails 0 0.00 1 54.13 Griffin, Lake 16505 Lake Lake SJ F 44.11 9,579.12 90 13,500.00 Griffin, Lake 16505 Lake Lake SJ H 332.386 15,551.08 300 15,000.00 Griffin, Lake 16505 Lake Lake SJ cattails 0.125 163.54 2 300.00 Griffin, Lake 16505 Lake Lake SJ Torpedogras 0 0.00 2 300.00 Guano River WMA 1801 NaturChem St. Johns SJ F 0 0.00 40 11,600.00 Guano River WMA 1801 NaturChem St. Johns SJ cattails 0 0.00 12 1,740.00 Guano River WMA 1801 NaturChem St. Johns SJ Peppers 0 0.00 1 250.00 Guano River WMA 1801 NaturChem St. Johns SJ tallow 0 0.00 1 250.00 Guano River WMA 1801 Naturchem St. Johns SJ Torpedograss 0.00 1 145.00 Haines Creek 780 Lake Lake SJ F 5.03 1,412.48 23 3,450.00 Haines Creek 780 Lake Lake SJ H 5.61 1,141.35 20 12,000.00 Haines Creek 780 Lake Lake SJ cattails 0 0.00 0.5 75.00 Haines, Lake 716 Polk Polk SW F 1.5 559.29 15 2,250.00 Haines, Lake 716 Polk Polk SW H 136 2,681.65 200 140,000.00 Half Moon, Lk 340 NaturChem Marion SJ F 0 0.00 2 200.00 Half Moon, Lk 340 NaturChem Marion SJ H 0 0.00 0.1 0.00 Half Moon, Lk 340 NaturChem Marion SJ Frogsbit 0.00005 190.38 3.5 350.00 Half Moon, Lk 340 NaturChem Marion SJ scirpus 0 0.00 3.5 350.00 Hall, Lake 172 Applied Aquatic Leon NW F 5 1,189.99 10 1,000.00 Hall, Lake 172 Applied Aquatic Leon NW H 0 0.00 0.5 0.00 Halls River 100 Citrus Citrus SW F 1 609.14 10 2,750.00 Halls River 100 Citrus Citrus SW H 0 0.00 5 4,875.00 Halls River 100 Citrus Citrus SW cattails 0 123.51 1 350.00 Halls River 100 Citrus Citrus SW Giant reed 0 0.00 5 1,750.00 Halls River 100 Citrus Citrus SW Lyngbya 7 8,928.48 3 7,200.00 Hamilton, Lake 2126 Polk Polk SW F 54.25 8,448.14 70 10,500.00 Hamilton, Lake 2126 Polk Polk SW H 0 0.00 10 7,000.00 Hancock, Lake 4519 Polk Polk SW F 146.5 10,536.65 150 22,500.00 Hancock, Lake 4519 Polk Polk SW H 0 0.00 1 700.00 Hancock, Lake 4519 SWFWMD Polk SW Tussocks 0 0.00 5 1,000.00 Harris, Lake 13788 Lake Lake SJ F 17.01 5,501.25 25 3,750.00 Harris, Lake 13788 Lake Lake SJ H 339.577 12,142.96 400 17,500.00 Harris, Lake 13788 Lake Lake SJ cattails 0 0.00 1 150.00 Harris, Lake 13788 Lake Lake SJ Torpedogras 0 0.00 2 300.00 Hart, Lake 1850 SFWMD Osceola SF F 24.7 2,976.54 20 2,800.00 FY 07-08 Water FY 06-07 Acres FY 07-08 Body Acres FY 06-07 Ctrl Dollars

Water Body Acres Contractor County WMD Plant Type Treated Dollars Spent Allocated Allocated Hart, Lake 1850 SFWMD Osceola SF H 0 0.00 1 700.00 Hart, Lake 1850 SFWMD Osceola SF S.cubensis 0 0.00 5 750.00 Hartridge, Lake 434 Polk Polk SW F 0 64.27 3 450.00 Hartridge, Lake 434 Polk Polk SW H 56.5 485.08 50 35,000.00 Hatchineha Canals 100 Polk Polk SW F 22 4,395.14 25 3,750.00 Hatchineha Canals 100 Polk Polk SW H 0 0.00 5 3,500.00 Hatchineha, Lake 6665 SFWMD Osceola SF F 340.12 346,637.32 500 70,000.00 Hatchineha, Lake 6665 SFWMD Osceola SF H 93 283,780.00 500 50,000.00 Hatchineha, Lake 6665 SFWMD Osceola SF Frogsbit 0 0.00 15 2,250.00 Hatchineha, Lake 6665 SFWMD Osceola SF S.cubensis 0 0.00 5 750.00 Hatchineha, Lake 6665 SFWMD Osceola SF Scleria lacus 0 0.00 25 3,750.00 Hatchineha, Lake 6665 SFWMD Osceola SF Tussocks 0 0.00 15 30,000.00 Helen, Lake 44 Volusia Volusia SJ H 0 0.00 1 500.00 Helen, Lake 44 Volusia Volusia SJ Alligatorwee 0 0.00 3 360.00 Helena Run 38 Lake Lake SJ F 13 1,789.92 29 4,350.00 Helena Run 38 Lake Lake SJ H 0.568 118.26 25 15,000.00 Hellen-Blazes, Lake 381 SJRWMD Brevard SJ F 28 3,654.96 75 12,000.00 Hellen-Blazes, Lake 381 SJRWMD Brevard SJ cattails 0 0.00 4 640.00 Hellen-Blazes, Lake 381 SJRWMD Brevard SJ Frogsbit 0 0.00 1 160.00 Henry, Lake 64 Highlands Highlands SW F 0 97.14 1 95.00 Henry, Lake 64 Highlands Highlands SW H 0 0.00 1 730.00 Henry, Lake 64 Highlands Highlands SW S.cubensis 0 0.00 1 95.00 Henry, Lake 64 Highlands Highlands SW snag trees 0 0.00 1,000.00 Hiawatha, Lake 48 Lake Lake SJ F 7 1,655.05 35 5,250.00 Hiawatha, Lake 48 Lake Lake SJ cattails 0 0.00 1 150.00 Hillsborough River 443 Hillsborough HillsboroughSW F 214.45 47,213.46 185 33,343.60 Hillsborough River 443 Hillsborough HillsboroughSW H 0 175.22 1 777.00 Hillsborough River 443 Hillsborough HillsboroughSW Paspalum 0 0.00 5 893.35 Hillsborough River 443 Hillsborough HillsboroughSW Pennywort 0 0.00 5 893.35 Hillsborough River 443 Hillsborough HillsboroughSW Primrose 0 0.00 5 893.35 Holden's Pond 80 NaturChem Alachua SJ F 3 694.99 15 1,625.00 Holden's Pond 80 NaturChem Alachua SJ H 0 57.88 0.1 70.00 Holden's Pond 80 NaturChem Alachua SJ Taro 0 0.00 0.5 100.00 Holden's Pond 80 NaturChem Alachua SJ Torpedogras 0.25 61.65 0.5 100.00 Hollingsworth, Lake 356 Polk Polk SW F 0 0.00 2 300.00 Hollingsworth, Lake 356 Polk Polk SW H 93 279.86 75 52,500.00 Holly Lake 98 Lake Lake SJ F 0 585.99 0.5 75.00 Holly Lake 98 Lake Lake SJ H 0.315 617.77 1 600.00 Holly Lake 98 Lake Lake SJ cattails 0.00 5 750.00 Holly Lake 98 Lake Lake SJ Willow 0.00 5 750.00 Homestead Cnl 11 Brevard Brevard SJ F 0 0.00 1 108.06 800 Citrus Citrus SW F 2.75 2,571.63 15 4,375.00 Homosassa River 800 Citrus Citrus SW H 0 0.00 3 2,925.00 Homosassa River 800 Citrus Citrus SW Lyngbya 11.44 20,278.40 33 79,200.00 Homosassa River 800 Citrus Citrus SW Milfoil 0 0.00 25 10,000.00 Homosassa River 800 Citrus Citrus SW Water spinac 0 0.00 1 350.00 Howard, Lake 628 Polk Polk SW F 0 0.00 3 450.00 Howard, Lake 628 Polk Polk SW H 5 149.25 50 35,000.00 Huckleberry creek 25 Applied Aquatic Franklin NW F 0.00 10 1,000.00 Hunter, Lake 100 Polk Polk SW F 0.5 158.82 2 300.00 Hunter, Lake 100 SWFWMD Hernando SW F 1 211.34 5 1,000.00 Hunter, Lake 100 Polk Polk SW H 0 0.00 1 700.00 Hunter, Lake 100 SWFWMD Hernando SW H 2.83 1,428.94 10 8,000.00 Hunter, Lake 100 SWFWMD Hernando SW Maidencane 0 0.00 1 200.00 Hunter, Lake 100 SWFWMD Hernando SW Nuphar 0 0.00 1 200.00 Huntley, Lake 500 Highlands Highlands SW F 0 0.00 5 475.00 Huntley, Lake 500 Highlands Highlands SW H 0.5 572.90 1 730.00 Huntley, Lake 500 Highlands Highlands SW cattails 0 0.00 2 170.00 Huntley, Lake 500 Highlands Highlands SW D.Papyrs 2 439.51 4 380.00 Huntley, Lake 500 Highlands Highlands SW S.cubensis 0 0.00 2 190.00 FY 07-08 Water FY 06-07 Acres FY 07-08 Body Acres FY 06-07 Ctrl Dollars

Water Body Acres Contractor County WMD Plant Type Treated Dollars Spent Allocated Allocated Hurrah, Lake 16 Hillsborough HillsboroughSW F 0 0.00 5 1,152.20 Iamonia, Lake 5757 Applied Aquatic Leon NW F 21 2,836.89 250 25,000.00 Iamonia, Lake 5757 Applied Aquatic Leon NW H 0 0.00 1 0.00 Iamonia, Lake 5757 Applied Aquatic Leon NW Frogsbit 0 0.00 20 3,000.00 Iamonia, Lake 5757 Applied Aquatic Leon NW nymphaea 0 0.00 50 0.00 Iamonia, Lake 5757 Applied Aquatic Leon NW S.cubensis 0 0.00 25 2,500.00 100 FL Environmental Columbia SR F 0 0.00 5 625.00 Ida, Lake 159 Palm Beach Palm Beach SF F 2 853.05 15 3,783.00 Ida, Lake 159 Palm Beach Palm Beach SF H 9.08 12,914.70 30 47,284.00 Ida, Lake 159 Palm Beach Palm Beach SF Alligatorwee 0 0.00 0.5 303.00 Ida, Lake 159 Palm Beach Palm Beach SF Taro 0 0.00 0.5 303.00 Ida, Lake 159 Palm Beach Palm Beach SF Torpedogras 0 0.00 1 606.00 Idylwild, Lake 102 Polk Polk SW F 0 64.27 2 300.00 Idylwild, Lake 102 Polk Polk SW H 65 3,901.15 75 52,500.00 Isabell, Lake 95 Highlands Highlands SW F 0 0.00 5 475.00 Isabell, Lake 95 Highlands Highlands SW hymenachne 0 0.00 1 90.00 Isabell, Lake 95 Highlands Highlands SW S.cubensis 0 0.00 1 95.00 Isleworth, Lake 56 Orange Orange SF F 0 0.00 8 768.00 Isleworth, Lake 56 Orange Orange SF H 1.9 3,057.48 15 20,940.00 Istokpoga, Lake 27962 Highlands Highlands SF F 1449 151,981.00 2000 190,000.00 Istokpoga, Lake 27962 Highlands Highlands SF H 27 551,466.15 4350 50,000.00 Istokpoga, Lake 27962 Highlands Highlands SF cattails 0.00 5 425.00 Istokpoga, Lake 27962 Highlands Highlands SF hymenachne 0 0.00 5 450.00 Istokpoga, Lake 27962 Highlands Highlands SF Nuphar 5 608.85 5 425.00 Istokpoga, Lake 27962 Highlands Highlands SF snag trees 0 23,360.65 5,000.00 Istokpoga, Lake 27962 Highlands Highlands SF Taro 0 0.00 10 950.00 Ivanhoe, Lake 126 Orlando Orange SJ H 0 0.00 85 75,250.00 Ivanhoe, Lake 127 Orlando Orange SJ Torpedogras 0 0.00 10 1,500.00 Jacks Creek 5 Highlands Highlands SW F 1 138.06 1 95.00 Jacks Creek 5 Highlands Highlands SW snag trees 0 0.00 1,000.00 Jackson Creek 50 Highlands Highlands SW F 25 1,739.79 40 3,800.00 Jackson Creek 50 Highlands Highlands SW Nuphar 5.5 362.25 10 850.00 Jackson, Lake 1020 SFWMD Osceola SF F 19 4,429.10 200 28,000.00 Jackson, Lake 3400 Highlands Highlands SW F 0 82.98 5 475.00 Jackson, Lake 1020 SFWMD Osceola SF H 69.75 12,191.56 500 35,000.00 Jackson, Lake 3400 Highlands Highlands SW H 0 0.00 1 730.00 Jackson, Lake 1020 SFWMD Osceola SF Frogsbit 0 0.00 10 1,500.00 Jackson, Lake 1020 SFWMD Osceola SF S.cubensis 0 0.00 5 750.00 Jackson, Lake 3400 Highlands Highlands SW S.cubensis 0 0.00 3 285.00 Jackson, Lake 1020 SFWMD Osceola SF Smartweed 0.00 10 1,500.00 Jackson, Lake 3400 Highlands Highlands SW snag trees 0 0.00 1,000.00 Jackson, Lake 1020 SFWMD Osceola SF Torpedogras 0 0.00 100 18,000.00 Jackson, Lake 4000 Applied Aquatic Leon NW F 7.5 1,153.37 20 2,000.00 Jackson, Lake 4000 Applied Aquatic Leon NW H 0 0.00 200 45,000.00 Jackson, Lake 4000 Applied Aquatic Leon NW Torpedogras 0 0.00 10 1,500.00 James Canal 8 Brevard Brevard SJ F 0.75 98.77 2 202.26 Jessamine, Lake 306 Orange Orange SJ F 2 1,733.88 10 960.00 Jessamine, Lake 306 Orange Orange SJ H 31.05 27,449.03 25 34,900.00 Jessamine, Lake 306 Orange Orange SJ Torpedograss 0.00 2 116.00 Jessie, Lake 190 Polk Polk SW F 0 64.27 2 300.00 Jessie, Lake 190 Polk Polk SW H 85.5 20,334.42 90 63,000.00 Jessup, Lake 10011 Applied Aquatic Seminole SJ H 0.5 351.39 50 8,000.00 Jessup, Lake 10011 Applied Aquatic Seminole SJ Torpedogras 0 0.00 20 2,900.00 Johns Lake 2417 Lake Lake SJ F 57.83 4,387.91 75 11,250.00 Johns Lake Applied Aquatic SJ H 80 897.00 Johns Lake 2417 Lake Lake SJ H 459.44 18,734.03 450 12,000.00 Johns Lake 2417 Lake Lake SJ cattails 0 0.00 1 150.00 Johnson Lake 52 NaturChem Alachua SJ F 0.33 94.06 3 325.00 Johnson Lake 52 NaturChem Alachua SJ H 0 57.88 0.2 140.00 Johnson Lake 52 NaturChem Alachua SJ Taro 0 0.00 0.1 20.00 FY 07-08 Water FY 06-07 Acres FY 07-08 Body Acres FY 06-07 Ctrl Dollars

Water Body Acres Contractor County WMD Plant Type Treated Dollars Spent Allocated Allocated Josephine Creek 20 Highlands Highlands SW F 9.5 827.64 10 950.00 Josephine Creek 20 Highlands Highlands SW H 0 0.00 1 730.00 Josephine Creek 20 Highlands Highlands SW S.cubensis 0 0.00 1 95.00 Josephine, Lake 1236 Highlands Highlands SW F 72 5,559.96 75 7,125.00 Josephine, Lake 1236 Highlands Highlands SW H 0 0.00 1 730.00 Josephine, Lake 1236 Highlands Highlands SW pickerelweed 0.00 10 950.00 Josephine, Lake 1236 Highlands Highlands SW Primrose 0.00 5 475.00 Josephine, Lake 1236 Highlands Highlands SW S.cubensis 0 0.00 10 950.00 Juliana, Lake 926 Polk Polk SW F 16.5 2,335.39 20 3,000.00 Juliana, Lake 926 Polk Polk SW H 23 8,050.59 50 35,000.00 Jumper, Lake 305 NaturChem Marion SJ F 26 3,502.04 24 4,000.00 Jumper, Lake 305 NaturChem Marion SJ H 0 0.00 0.1 0.00 Jumper, Lake 305 NaturChem Marion SJ Tussocks 0 0.00 10 2,000.00 June-In-Winter, Lake 3504 Highlands Highlands SW F 0 483.86 3 285.00 June-In-Winter, Lake 3504 Highlands Highlands SW H 0 0.00 1 730.00 June-In-Winter, Lake 3504 Highlands Highlands SW S.cubensis 0 0.00 1 95.00 June-In-Winter, Lake 3504 Highlands Highlands SW Taro 0 0.00 3 285.00 Juniper Lake 665 Applied Aquatic Walton NW Bacopa 0 0.00 20 20,000.00 Kerr, Lake(s) 2830 NaturChem Marion SJ F 11 2,127.93 25 2,500.00 Kerr, Lake(s) 2830 NaturChem Marion SJ H 189.08 334,424.78 300 325,000.00 Kissimmee Canals 100 Polk Polk SW F 9 1,836.81 50 7,500.00 Kissimmee Canals 100 Polk Polk SW H 0 0.00 5 3,500.00 Kissimmee River 4240 SFWMD Osceola SF F 2797.79 217,984.94 3500 490,000.00 Kissimmee River 4240 SFWMD Osceola SF H 0 0.00 10 7,000.00 Kissimmee River 4240 SFWMD Osceola SF hymenachne 88.4 6,469.54 100 17,000.00 Kissimmee River 4240 SFWMD Osceola SF Limpo grass 670.2 79,940.59 500 85,000.00 Kissimmee River 4240 SFWMD Osceola SF Nuphar 0 0.00 10 1,500.00 Kissimmee River 4240 SFWMD Osceola SF Torpedogras 0 0.00 10 1,700.00 Kissimmee River 4240 SFWMD Osceola SF Tussocks 7.85 1,835.41 70 10,500.00 Kissimmee, Lake 34948 SFWMD Osceola SF F 775.07 128,255.23 2250 337,500.00 Kissimmee, Lake 34948 SFWMD Osceola SF H 501.08 57,142.95 5000 325,000.00 Kissimmee, Lake 34948 SFWMD Osceola SF hymenachne 0 0.00 2 300.00 Kissimmee, Lake 34948 SFWMD Osceola SF Smartweed 0.00 Kissimmee, Lake 34948 SFWMD Osceola SF Tussocks 983.3 260,713.57 50 100,000.00 Kissimmee, Lake 34948 SFWMD Osceola SF Wright's Nut-rush 0.00 10 1,500.00 Lafayette, Lake 2000 Applied Aquatic Leon NW F 18.25 2,296.63 40 4,000.00 Lafayette, Lake 2000 Applied Aquatic Leon NW Brasenia 0 0.00 30 12,000.00 Lafayette, Lake 2000 Applied Aquatic Leon NW Frogsbit 0 0.00 15 2,250.00 Lafayette, Lake 2000 Applied Aquatic Leon NW S.cubensis 0 0.00 15 2,250.00 Lafayette, Lake 2000 Applied Aquatic Leon NW Tussocks 4.9 4,900.00 Lafayette, Lake 2000 Applied Aquatic Leon NW W. Lily 24 13,174.50 25 0.00 Lawne, Lake 156 Orange Orange SJ F 2.5 465.81 5 480.00 Lawne, Lake 156 Orange Orange SJ H 131.5 934.38 20 27,920.00 Lelia, Lake 165 Highlands Highlands SW F 0 0.00 1 95.00 Lelia, Lake 165 Highlands Highlands SW H 1 766.50 1 730.00 Lena, Lake 207 Polk Polk SW F 0 235.64 2 300.00 Lena, Lake 207 Polk Polk SW H 0 93.28 10 7,000.00 Letta Lake 478 Highlands Highlands SW F 0 0.00 1 95.00 Letta Lake 478 Highlands Highlands SW H 0 0.00 1 730.00 Letta Lake 478 Highlands Highlands SW S.cubensis 0 0.00 1 95.00 Lindsey, Lake 137 SWFWMD Hernando SW F 4 531.03 10 2,000.00 Lindsey, Lake 137 SWFWMD Hernando SW Cabomba 2.5 4,300.45 6 2,400.00 Lindsey, Lake 137 SWFWMD Hernando SW Nuphar 10 4,546.14 12 3,600.00 Lindsey, Lake 137 SWFWMD Hernando SW S.cubensis 0 0.00 3 600.00 Little 818 NaturChem Alachua SJ F 6.5 1,223.88 15 1,750.00 Little Orange Lake 818 NaturChem Alachua SJ H 0 0.00 Little Orange Lake 818 NaturChem Alachua SJ Taro 1.5 268.48 3 600.00 Little Red Water Lake 66 Highlands Highlands SW cattails 0 0.00 1 85.00 Little Red Water Lake 66 Highlands Highlands SW S.cubensis 0 0.00 3 285.00 Livingston, Lake 1203 Polk Polk SW F 2.5 808.26 10 1,500.00 FY 07-08 Water FY 06-07 Acres FY 07-08 Body Acres FY 06-07 Ctrl Dollars

Water Body Acres Contractor County WMD Plant Type Treated Dollars Spent Allocated Allocated Livingston, Lake 1203 Polk Polk SW H 0 0.00 5 3,500.00 Lizzie, Lake 792 SFWMD Osceola SF F 0 0.00 5 650.00 Lizzie, Lake 792 SFWMD Osceola SF H 0 0.00 2 1,400.00 Lizzie, Lake 792 SFWMD Osceola SF S.cubensis 0 0.00 5 750.00 Lizzie, Lake 792 SFWMD Osceola SF Torpedogras 0 0.00 10 1,700.00 Lochloosa, Lake 5705 NaturChem Alachua SJ F 194.25 35,304.72 250 27,500.00 Lochloosa, lake FL Environmental SR F 1.3 492.63 Lochloosa, Lake 5705 NaturChem Alachua SJ H 530.84 317,011.77 300 210,000.00 Lochloosa, Lake 5705 NaturChem Alachua SJ Taro 0 0.00 5 1,000.00 Lofton Creek NaturChem SJ F 0 332.22 Lotela, Lake 802 Highlands Highlands SW F 0 0.00 1 95.00 Lotela, Lake 802 Highlands Highlands SW H 0 865.91 2 1,460.00 Lotela, Lake 802 Highlands Highlands SW S.cubensis 0 0.00 1 95.00 Loughman, Lake 600 Brevard Brevard SJ cattails 0 0.00 1 218.00 Loughman, Lake 600 Brevard Brevard SJ F 0 0.00 2 372.60 Louisa Lake 3364 Lake Lake SJ F 1 1,404.43 22 3,300.00 Louise, Lake 145 Orange Orange SF F 0 0.00 5 480.00 Louise, Lake 145 Orange Orange SF H 1 35,626.87 30 41,880.00 Lower Lake Louise 257 Volusia Volusia SJ F 10.5 1,410.66 12 1,920.00 Lower Lake Louise 257 Volusia Volusia SJ H 0 0.00 6 4,200.00 Lower Lake Louise 257 Volusia Volusia SJ S.cubensis 4.1 384.81 12 1,920.00 Lower Lake Louise 257 Volusia Volusia SJ Torpedogras 0.9 295.02 12 1,920.00 100 SFWMD Palm Beach SF F 0 0.00 7 910.00 Loxahatchee River 100 SFWMD Palm Beach SF Hygrophila 0 0.00 Loxahatchee River 100 SFWMD Palm Beach SF Limnoph 0 0.00 Loxahatchee River 100 SFWMD Palm Beach SF Paragrass 0 0.00 2 260.00 Ltl. 150 Hillsborough HillsboroughSW F 0 0.00 2 357.34 Ltl. Manatee River 150 Hillsborough HillsboroughSW H 0 22.15 Ltl. Manatee River 150 Hillsborough HillsboroughSW Paspalum 0 0.00 1 178.67 Ltl. Manatee River 150 Hillsborough HillsboroughSW Pennywort 0 342.15 1 178.67 Lucy, Lake 335 Lake Lake SJ F 0 187.74 2.25 338.00 Lucy, Lake 335 Lake Lake SJ H 0 73.18 1 600.00 Lucy, Lake 335 Lake Lake SJ S.cubensis 0 0.00 3 450.00 Lullwater 20 Applied Aquatic Bay NW F 6.5 978.24 20 2,000.00 Lulu, Lake 301 Polk Polk SW F 0.5 95.80 10 1,500.00 Lulu, Lake 301 Polk Polk SW H 84 21,738.40 250 175,000.00 Manatee River 3756 SWFWMD Manatee SW F 88 15,380.71 55 11,000.00 Manatee River 3756 SWFWMD Manatee SW hymenachne 0 0.00 3 600.00 Manatee River 3756 SWFWMD Manatee SW Paragrass 0 0.00 5 1,000.00 Mann, Lake 244 Orange Orange SF F 1.5 331.57 Mann, Lake 244 Orange Orange SF H 0 0.00 Mariam, Lake 199 Polk Polk SW F 0 235.65 2 300.00 Marian, Lake 5739 SFWMD Osceola SF F 1 1,210.33 75 10,500.00 Marian, Lake 5739 SFWMD Osceola SF H 0 0.00 50 62,300.00 Marion, Lake 2990 Polk Polk SF F 151.5 25,803.77 250 37,500.00 Marion, Lake 2990 Polk Polk SF H 0 0.00 5 3,500.00 Martha, Lake 85 Polk Polk SF F 0 196.60 2 300.00 Martha, Lake 85 Polk Polk SF H 13 251.87 50 35,000.00 Martin Lake 240 Applied Aquatic Bay NW F 0.00 5 500.00 Mary Jane, Lake 1158 SFWMD Osceola SF F 9 2,429.29 80 11,200.00 Mary Jane, Lake 1158 SFWMD Osceola SF S.cubensis 4 717.64 Mary Jane, Lake 1158 SFWMD Osceola SF Tussocks 0 0.00 10 10,000.00 Mattie, Lake 1078 Polk Polk SW F 133.5 11,950.78 60 9,000.00 Mattie, Lake 1078 Polk Polk SW H 0 0.00 2 1,400.00 Maude, Lake 55 Polk Polk SW F 3 383.83 2 300.00 Maude, Lake 55 Polk Polk SW H 135 40,696.62 55 38,500.00 May, Lake 44 Polk Polk SW F 1 241.18 5 750.00 May, Lake 44 Polk Polk SW H 1 111.94 5 3,500.00 McKethan, Lake 57 SWFWMD Hernando SW F 0 0.00 10 2,000.00 McKethan, Lake 57 SWFWMD Hernando SW Maidencane 0 0.00 2 400.00 FY 07-08 Water FY 06-07 Acres FY 07-08 Body Acres FY 06-07 Ctrl Dollars

Water Body Acres Contractor County WMD Plant Type Treated Dollars Spent Allocated Allocated McKethan, Lake 57 SWFWMD Hernando SW S.cubensis 0 0.00 5 1,000.00 McLeod, Lake 512 Polk Polk SW F 0 279.91 2 300.00 McLeod, Lake 512 Polk Polk SW H 0 55.97 1 700.00 Medard Reservoir 647 SWFWMD HillsboroughSW F 40 6,825.59 50 10,000.00 Medard Reservoir 647 SWFWMD HillsboroughSW H 0 0.00 20 16,000.00 Merritt's Mill Pond 202 Applied Aquatic Jackson NW F 1 486.29 5 500.00 Merritt's Mill Pond 202 Applied Aquatic Jackson NW H 0 0.00 2 0.00 Merritt's Mill Pond 202 Applied Aquatic Jackson NW Coontail 0 0.00 10 0.00 Merritt's Mill Pond 202 Applied Aquatic Jackson NW eelgrass 0 0.00 10 0.00 Merritt's Mill Pond 202 Applied Aquatic Jackson NW snag trees 0.00 0.00 Miccosukee, Lake 6276 Applied Aquatic Jefferson NW F 16 1,828.83 1 0.00 Miccosukee, Lake 6276 Applied Aquatic Jefferson NW H 0 0.00 1 0.00 Miccosukee, Lake 6276 Applied Aquatic Jefferson NW Frogsbit 46 3,992.83 200 30,000.00 Miccosukee, Lake 6276 Applied Aquatic Jefferson NW Maidencane 0 0.00 Miccosukee, Lake 6276 Applied Aquatic Jefferson NW nymphaea 0 0.00 50 0.00 Miccosukee, Lake 6276 Applied Aquatic Jefferson NW S.cubensis 29 5,569.26 5 500.00 Miccosukee, Lake 6276 A&L Aquatics Jefferson NW Tussocks 25 22,050.00 Middle Lake 215 SWFWMD Pasco SW F 6 1,318.72 10 2,000.00 Middle Lake 215 SWFWMD Pasco SW H 0 0.00 2 1,000.00 Middle Lake 215 SWFWMD Pasco SW S.cubensis 0 0.00 5 1,000.00 Mill Dam, Lake 210 NaturChem Marion SJ F 0 664.44 3 300.00 Mill Dam, Lake 210 NaturChem Marion SJ H 0 0.00 0.1 0.00 Miller Lake 8 Volusia Volusia SJ F 0 0.00 6 1,080.00 Miller Lake 8 Volusia Volusia SJ Brush 0 0.00 3 480.00 Miller Lake 8 Volusia Volusia SJ S.cubensis 0 0.00 4 640.00 Miller Lake 8 Volusia Volusia SJ snag trees 0 0.00 2,500.00 Minnehaha, Lake 2261 Lake Lake SJ F 4.65 1,294.83 10 1,500.00 Minnehaha, Lake 2261 Lake Lake SJ H 0 139.74 1 600.00 Minnehaha, Lake 2261 Lake Lake SJ S.cubensis 0 0.00 0.5 75.00 Minneola, Lake 1888 Lake Lake SJ F 0 347.41 10 1,500.00 Minneola, Lake 1888 Lake Lake SJ H 0 173.76 1 600.00 Minneola, Lake 1888 Lake Lake SJ S.cubensis 0 0.00 2 300.00 Minzie, Lake 22 Polk Polk SW F 0 149.96 2 300.00 Minzie, Lake 22 Polk Polk SW H 0 0.00 1 700.00 Miona, Lake 418 SWFWMD Sumter SW H 0 46.65 2 1,600.00 Mirror, Lake 123 Polk Polk SW F 0 64.27 2 300.00 Mirror, Lake 123 Polk Polk SW H 33 11,206.23 60 42,000.00 Monroe, Lake 9406 Applied Aquatic Volusia SJ H 2 848.97 400 60,000.00 Monroe, Lake 9406 Applied Aquatic Volusia SJ Exotic Nymp 0 0.00 5 750.00 Montgomery 36 FL Environmental Columbia SR F 0 0.00 0.5 50.00 Montgomery 36 FL Environmental Columbia SR H 0 0.00 0.2 130.00 Montgomery 36 FL Environmental Columbia SR Taro 0 0.00 0.5 100.00 Moss Lee Lake 129 NaturChem Putnam SJ F 6.6 837.86 10 1,125.00 Moss Lee Lake 129 NaturChem Putnam SJ H 0 0.00 0.5 500.00 Moss Lee Lake 129 NaturChem Putnam SJ cattails 0 0.00 1 200.00 Mountain Lake 127 SWFWMD Hernando SW F 0 0.00 12 2,400.00 Mountain Lake 127 SWFWMD Hernando SW hymenachne 0 0.00 10 2,000.00 Mountain Lake 127 SWFWMD Hernando SW S.cubensis 0 0.00 5 1,000.00 Mud Lake 133 Polk Polk SW F 0.5 649.98 5 750.00 Mud Lake 133 Polk Polk SW H 27.99 Munson, Lake 255 Applied Aquatic Leon NW F 0 0.00 20 2,000.00 Munson, Lake 255 Applied Aquatic Leon NW H 0 0.00 675 SWFWMD Sarasota SW F 216 25,907.83 200 30,000.00 Myakka River 675 SWFWMD Sarasota SW Frogsbit 0 0.00 2 500.00 Myakka River 675 SWFWMD Sarasota SW paragrass 0 0.00 5 1,000.00 Myakka River 675 SWFWMD Sarasota SW Paspalum 29.65 11,132.11 5 1,000.00 Myakka River 675 SWFWMD Sarasota SW Water spinac 0 0.00 2 2,000.00 Mystic Lake 47 FL Environmental Madison SR F 0 0.00 1 100.00 Nassau River 5785 NaturChem Nassau SJ F 0 0.00 5 500.00 Nassau River 5785 NaturChem Nassau SJ Pennywort 0 0.00 20 4,000.00 FY 07-08 Water FY 06-07 Acres FY 07-08 Body Acres FY 06-07 Ctrl Dollars

Water Body Acres Contractor County WMD Plant Type Treated Dollars Spent Allocated Allocated Nassau River 5785 Naturchem Nassau SJ snag trees 0.00 1,000.00 Nassau River 5785 NaturChem Nassau SJ Taro 0 0.00 5 1,000.00 Ned, Lake 74 Polk Polk SW F 1.5 329.50 5 750.00 Ned, Lake 74 Polk Polk SW H 0 37.31 3 2,100.00 Newnans Lake 7427 NaturChem Alachua SJ F 474 66,601.11 300 36,250.00 Newnans Lake 7427 NaturChem Alachua SJ H 0 0.00 1 1,000.00 Norris, Lake 1131 Lake Lake SJ F 0 178.67 14 2,100.00 North Lake Talmadge 121 Volusia Volusia SJ F 5.4 544.52 10 1,800.00 North Lake Talmadge 121 Volusia Volusia SJ H 0 0.00 1 500.00 North Lake Talmadge 121 Volusia Volusia SJ S.cubensis 1.6 195.42 6 960.00 Ocean Pond 1774 FL Environmental Columbia SR Maidencane 0 0.00 1 200.00 Ocean Pond 1774 FL Environmental Columbia SR Torpedogras 0 0.00 1 200.00 Okahumpka, Lake 670 SWFWMD Sumter SW F 20 3,414.61 20 3,000.00 Okahumpka, Lake 670 SWFWMD Sumter SW H 5 5,564.12 250 80,000.00 Okahumpka, Lake 670 SWFWMD Sumter SW S.cubensis 11.4 919.76 10 2,000.00 Okeechobee, Lake 448000 USACOE OkeechobeeSF F 2049.3 303,603.80 0 0.00 Okeechobee, Lake 448000 SFWMD OkeechobeeSF cattails 0 0.00 Okeechobee, Lake 448000 SFWMD OkeechobeeSF hymenachne 0 0.00 100 17,000.00 Okeechobee, Lake 448000 SFWMD OkeechobeeSF Torpedogras 10476 1,898,955.20 5000 850,000.00 Okeechobee, Lake 448000 SFWMD OkeechobeeSF Tussocks 0 0.00 Olivia, Lake 86 Highlands Highlands SW H 0 0.00 1 730.00 Orange Lake 12706 NaturChem Alachua SJ F 912 126,792.14 450 55,000.00 Orange Lake 12706 NaturChem Alachua SJ H 45.24 167,072.95 1000 200,000.00 Orange Lake 12706 NaturChem Alachua SJ Frogsbit 0 0.00 50 37,500.00 Orange Lake 12706 NaturChem Alachua SJ Pennywort 0 0.00 150 7,500.00 Orange Lake 12706 NaturChem Alachua SJ Taro 3 1,299.45 20 4,000.00 Orange Lake 12706 NaturChem Alachua SJ Tussocks 0 0.00 50 5,000.00 Osborne, Lake 356 Palm Beach Palm Beach SF F 16.5 4,196.40 25 6,404.00 Osborne, Lake 356 Palm Beach Palm Beach SF H 806.02 321,113.03 75 97,888.00 Osborne, Lake 356 Palm Beach Palm Beach SF Alligatorwee 0 0.00 0.5 322.00 Osborne, Lake 356 Palm Beach Palm Beach SF Taro 0 0.00 0.5 322.00 Osborne, Lake 356 Palm Beach Palm Beach SF Torpedogras 0 0.00 1 1,286.00 Palatlakaha river 672 Applied Aquatic Lake SJ cattails 0 0.00 5 1,000.00 Palatlakaha river 672 Applied Aquatic Lake SJ S.cubensis 0 0.00 200 40,000.00 Palatlakaha river 672 Applied Aquatic Lake SJ Taro 2 353.31 50 10,000.00 Palatlakaha River-N 10 Lake Lake SJ F 2.75 372.83 6 900.00 Palatlakaha River-N 10 Lake Lake SJ H 57 1,417.91 80 2,500.00 Palatlakaha River-N 10 Lake Lake SJ Alligatorwee 0 0.00 3 450.00 Palatlakaha River-N 10 Lake Lake SJ Pennywort 0 0.00 5 750.00 Palatlakaha River-S 750 Lake Lake SJ F 16.75 3,173.51 20 3,000.00 Palatlakaha River-S 750 Lake Lake SJ H 0.72 996.64 10 6,000.00 Palatlakaha, Lake 101 Lake Lake SJ F 6.36 1,950.07 23 3,450.00 Palatlakaha, Lake 101 Lake Lake SJ Paragrass 0 0.00 2 300.00 Palatlakaha, Lake 101 Lake Lake SJ Pennywort 0 0.00 0.5 75.00 Palatlakaha, Lake 101 Lake Lake SJ S.cubensis 0 0.00 1 150.00 Palatlakaha, Lake 101 Lake Lake SJ Torpedogras 0 0.00 1 150.00 Palestine Lake 911 FL Environmental Union SR F 0 0.00 1 100.00 Palestine Lake 911 FL Environmental Union SR Torpedograss 0.00 0.2 40.00 Panasoffkee, Lake 4460 SWFWMD Sumter SW F 68.05 13,132.56 150 25,000.00 Panasoffkee, Lake 4460 SWFWMD Sumter SW H 0 292.47 200 100,000.00 Panasoffkee, Lake 4460 SWFWMD Sumter SW Cupscale 0 0.00 5 1,000.00 Panasoffkee, Lake 4460 SWFWMD Sumter SW Pennywort 4.5 466.98 30 6,000.00 Panasoffkee, Lake 4460 SWFWMD Sumter SW S.cubensis 0 0.00 5 1,000.00 Panasoffkee, Lake 4460 SWFWMD Sumter SW Smartweed 0 0.00 5 1,000.00 Panasoffkee, Lake 4460 SWFWMD Sumter SW Tussocks 8 1,014.94 20 4,000.00 Pansy,Lake 50 Polk Polk SW F 0 192.80 2 300.00 Pansy,Lake 50 Polk Polk SW H 0 0.00 10 7,000.00 Parker, Lake 2272 Polk Polk SW F 30 6,565.39 100 15,000.00 Parker, Lake 2272 Polk Polk SW H 0 0.00 500 350,000.00 2973 SWFWMD Hardee SW F 20 1,894.71 50 10,000.00 FY 07-08 Water FY 06-07 Acres FY 07-08 Body Acres FY 06-07 Ctrl Dollars

Water Body Acres Contractor County WMD Plant Type Treated Dollars Spent Allocated Allocated Peace River 2973 SWFWMD Hardee SW hymenachne 0 0.00 5 1,000.00 Peace River 2973 SWFWMD Hardee SW Wetland Nig 0 0.00 60 10,000.00 Peacock Lake 148 FL Environmental Suwannee SR F 5.15 1,224.70 25 2,500.00 Peacock Lake 148 FL Environmental Suwannee SR Frogsbit 0 0.00 3 600.00 Peacock Lake 148 FL Environmental Suwannee SR Taro 0 0.00 1 200.00 Peacock Lake 148 FL Environmental Suwannee SR Torpedogras 0 0.00 1.5 300.00 Pierce, Lake 3729 Polk Polk SF F 76 9,769.71 100 15,000.00 Pierce, Lake 3729 Polk Polk SF H 0 0.00 50 35,000.00 Pine Lake 35 Palm Beach Palm Beach SF F 1 346.08 6 1,477.00 Pine Lake 35 Palm Beach Palm Beach SF H 1 248.03 20 31,723.00 Pine Lake 35 Palm Beach Palm Beach SF Torpedograss 0.00 1 642.00 Pioneer Lake 93 Highlands Highlands SW H 0.5 219.25 1 730.00 Pioneer Lake 93 Highlands Highlands SW cattails 0 0.00 0.5 42.50 Placid, Lake 3320 Highlands Highlands SW F 0 439.10 2 190.00 Placid, Lake 3320 Highlands Highlands SW cattails 0 0.00 0.5 42.50 Pluckebaum 25 Brevard Brevard SJ F 9 1,093.87 20 2,035.00 Pluckebaum 25 Brevard Brevard SJ Peppers 0 0.00 1 120.00 Plummer Creek NaturChem SJ Tree remova 0 664.44 Pocket Lake 126 Orange Orange SF F 0 0.00 5 480.00 Pocket Lake 126 Orange Orange SF H 0 98.34 5 6,980.00 Poinsett, Lake 4334 Applied Aquatic Brevard SJ F 172.75 18,723.76 450 65,250.00 Poinsett, Lake 4334 Applied Aquatic Brevard SJ H 0 0.00 100 16,000.00 Poinsett, Lake 4334 Applied Aquatic Brevard SJ Paragrass 0 0.00 20 3,000.00 Poinsett, Lake 4334 Applied Aquatic Brevard SJ Torpedogras 0 0.00 15 2,200.00 Port St John Canal 7 Brevard Brevard SJ F 0 0.00 1 100.00 Rachel, Lake 103 FL Environmental Madison SR F 0 0.00 3 300.00 Rachel, Lake 103 FL Environmental Madison SR Fanwort 0.00 15 500.00 Rachel, Lake 103 FL Environmental Madison SR Milfoil 0.00 5 500.00 150 SWFWMD Marion SW F 18 2,946.70 20 4,500.00 Rainbow River 150 SWFWMD Marion SW H 42.35 45,977.82 60 80,000.00 Red Beach, Lake 335 Highlands Highlands SW F 0 0.00 2 190.00 Red Beach, Lake 335 Highlands Highlands SW Torpedogras 0 0.00 1 85.00 Reedy Creek 100 SFWMD Osceola SF F 0 0.00 10 1,400.00 Reedy, Lake 3486 Polk Polk SW F 0 149.95 2 300.00 Reedy, Lake 3486 Polk Polk SW H 0 0.00 1 700.00 Rochelle, Lake 578 Polk Polk SW F 0 257.06 15 2,250.00 Rochelle, Lake 578 Polk Polk SW H 235 48,910.85 250 175,000.00 Rodman Res. 9600 NaturChem Putnam SJ F 218 27,600.47 500 72,500.00 Rodman Res. 9600 NaturChem Putnam SJ H 0 0.00 35 5,100.00 Rosalie, Lake 4597 Polk Polk SF F 46.5 10,702.25 200 30,000.00 Rosalie, Lake 4597 Polk Polk SF H 0 0.00 100 70,000.00 Rousseau, Lake 4000 Applied Aquatic Citrus SW F 415 46,155.56 510 63,750.00 Rousseau, Lake 4000 Applied Aquatic Citrus SW H 385.45 286,787.49 800 50,000.00 Rousseau, Lake 4000 Applied Aquatic Citrus SW cattails 0 0.00 2 800.00 Rousseau, Lake 4000 Applied Aquatic Citrus SW Coontail 0 0.00 10 7,000.00 Rousseau, Lake 4000 Applied Aquatic Citrus SW S.Naiad 0 0.00 10 7,500.00 Rousseau, Lake 4000 Applied Aquatic Citrus SW Tussocks 7 1,204.43 100 20,000.00 Rowell Lake 364 FL Environmental Bradford SR F 2 493.43 20 2,000.00 Rowell Lake 364 FL Environmental Bradford SR H 332 2,321.25 80 5,000.00 Rowell Lake 364 FL Environmental Bradford SR snag trees 0.00 500.00 Rowell Lake 364 FL Environmental Bradford SR Taro 0 0.00 2 400.00 Rowell Lake 364 FL Environmental Bradford SR Torpedogras 0 0.00 1 200.00 Roy, Lake 78 Polk Polk SW F 0 0.00 2 300.00 Roy, Lake 78 Polk Polk SW H 45.75 937.94 40 28,000.00 Runnymede Lake 300 SFWMD Osceola SF F 34.73 5,647.23 100 14,000.00 Runnymede Lake 300 SFWMD Osceola SF H 0 259.91 25 17,500.00 Runnymede Lake 300 SFWMD Osceola SF cattails 0 0.00 Runnymede Lake 300 SFWMD Osceola SF Coontail 0 0.00 Runnymede Lake 300 SFWMD Osceola SF Nuphar 0 0.00 Runnymede Lake 300 SFWMD Osceola SF Paragrass 0 0.00 FY 07-08 Water FY 06-07 Acres FY 07-08 Body Acres FY 06-07 Ctrl Dollars

Water Body Acres Contractor County WMD Plant Type Treated Dollars Spent Allocated Allocated Runnymede Lake 300 SFWMD Osceola SF Tussocks 67.84 840,999.71 Runnymede Lake 300 Weedbusters Osceola SF Tussocks 82 940,227.10 Russell, Lake 300 SFWMD Osceola SF F 28.01 5,960.61 15 2,100.00 Ruth Lake 312 Brevard Brevard SJ F 20 2,653.39 40 6,323.20 Ruth Lake 312 Brevard Brevard SJ cattails 0 0.00 1 138.70 Saddle Creek Park 335 Polk Polk SW F 14.5 3,674.20 50 7,500.00 Saddle Creek Park 335 Polk Polk SW H 115 27,928.91 150 105,000.00 Salt Lake 336 Brevard Brevard SJ F 0 0.00 2 350.74 Salt Lake 336 Brevard Brevard SJ cattails 0 0.00 1 230.21 Salt Lake 336 Brevard Brevard SJ Torpedograss 0.00 1 300.00 Sampson Lake 2042 FL Environmental Bradford SR F 12.4 1,206.63 50 5,000.00 Sampson Lake 2042 FL Environmental Bradford SR H 0 0.00 200 10,000.00 Sampson Lake 2042 FL Environmental Bradford SR cattails 4 532.92 25 5,000.00 Sampson Lake 2042 FL Environmental Bradford SR Taro 0 0.00 1 200.00 Sampson Lake 2042 FL Environmental Bradford SR Torpedogras 0 0.00 2 400.00 Sanitary(Mariana) 500 Polk Polk SW F 0 0.00 2 300.00 Santa Fe Lake 4721 FL Environmental Alachua SR F 47.25 2,139.38 40 4,000.00 Santa Fe Lake 4721 FL Environmental Alachua SR Taro 0 0.00 3 600.00 Santa Fe Lake 4721 FL Environmental Alachua SR Torpedogras 0 0.00 10 2,000.00 5000 FL Environmental Columbia SR F 55.5 8,440.79 35 4,375.00 Santa Fe River 5000 FL Environmental Columbia SR Taro 0 0.00 0.1 20.00 Savannahs St Park 2700 SFWMD Martin SF F 24 3,454.38 20 2,800.00 Savannahs St Park 2700 SFWMD Martin SF H 0 0.00 1 700.00 Sawgrass, Lake 407 SJRWMD Brevard SJ F 28 3,968.72 75 12,000.00 Sawgrass, Lake 407 SJRWMD Brevard SJ H 0 0.00 25 16,250.00 Sawgrass, Lake 407 SJRWMD Brevard SJ Frogsbit 0 0.00 15 2,400.00 Sawgrass, Litle Lake 74 SJRWMD Brevard SJ F 11 1,507.38 30 4,800.00 Sawgrass, Litle Lake 74 SJRWMD Brevard SJ H 0 0.00 5 3,450.00 Sawgrass, Litle Lake 74 SJRWMD Brevard SJ Frogsbit 0 0.00 1 160.00 Sears,Lake 82 Polk Polk SW F 0 0.00 2 300.00 Sears,Lake 82 Polk Polk SW H 32.75 233.21 5 3,500.00 Sebring, Lake 468 Highlands Highlands SW F 2 280.60 6 570.00 Sebring, Lake 468 Highlands Highlands SW S.cubensis 0 0.00 1 95.00 Sebring, Lake 468 Highlands Highlands SW snag trees 0 0.00 1,000.00 Sellers Lake (Pond) 1050 Lake Lake SJ F 0 219.18 0.5 75.00 Sellers Lake (Pond) 1050 Lake Lake SJ H 0 0.00 0.5 300.00 Sellers Lake (Pond) 1050 Lake Lake SJ Torpedogras 0 0.00 1 150.00 Seminole, Lake 36498 Applied Aquatic Jackson NW F 0.00 5 500.00 Seminole, Lake 36499 Applied Aquatic Jackson NW H 0.00 25 25,000.00 Seminole, Lake 36500 Applied Aquatic Jackson NW snag trees 0.00 10 0.00 Sheen, Lake 565 Orange Orange SF F 0 0.00 10 960.00 Sheen, Lake 565 Orange Orange SF H 16.05 18,665.82 50 69,843.88 Shell Creek 180 SWFWMD Charlotte SW F 214.5 32,297.88 110 25,000.00 10 SFWMD Osceola SF F 3.36 970.24 10 1,400.00 Shingle Creek 10 SFWMD Osceola SF H 0 0.00 2 1,400.00 Shingle Creek 10 SFWMD Osceola SF Paragrass 0.00 2 300.00 Shipp, Lake 283 Polk Polk SW F 0 0.00 2 300.00 Shipp, Lake 283 Polk Polk SW H 1.75 555.27 75 52,500.00 Silver Lake 125 SWFWMD Hernando SW H 0 0.00 20 15,000.00 (Run) 40 NaturChem Marion SJ F 0 0.00 1 200.00 Silver River (Run) 40 NaturChem Marion SJ H 0.25 264.66 2 2,000.00 Silver River (Run) 40 NaturChem Marion SJ Duckweed 0 0.00 2 400.00 Silver, Lake 52 Polk Polk SW F 0 64.27 2 300.00 Silver, Lake 52 Polk Polk SW H 25 354.48 10 7,000.00 SJR Deleon Springs Applied Aquatic Volusia SJ F 0 0.00 SJR Deleon Springs Applied Aquatic Volusia SJ H 1 2,122.25 SJR Deleon Springs Applied Aquatic Volusia SJ Peppers 0 0.00 SJR Deleon Springs Applied Aquatic Volusia SJ tallow 0 0.00 SJR, 520 Canal 12 Brevard Brevard SJ F 2 259.61 2 189.92 SJR, Tucker canal 26 Brevard Brevard SJ F 70.5 6,060.47 60 4,971.00 FY 07-08 Water FY 06-07 Acres FY 07-08 Body Acres FY 06-07 Ctrl Dollars

Water Body Acres Contractor County WMD Plant Type Treated Dollars Spent Allocated Allocated SJR, Tucker canal 26 Brevard Brevard SJ Peppers 0 0.00 1 120.00 Smart Lake 275 Polk Polk SW F 0 64.27 2 300.00 Smart Lake 275 Polk Polk SW H 395 1,462.42 200 140,000.00 Smith Lake 165 Applied Aquatic Washington NW Brasenia 14 1,391.87 20 8,000.00 Smith Lake 165 Applied Aquatic Washington NW Torpedogras 0 0.00 20 4,000.00 Sneads Smk 110 Applied Aquatic Jefferson NW F 16 1,856.69 40 4,000.00 Sneads Smk 110 Applied Aquatic Jefferson NW H 0 0.00 1 0.00 Sneads Smk 110 Applied Aquatic Jefferson NW Frogsbit 0 0.00 40 6,000.00 South Lake 1101 Brevard Brevard SJ F 28 3,941.48 50 7,739.00 South Lake 1101 Brevard Brevard SJ H 1 515.45 10 6,350.00 South Lake 1101 Brevard Brevard SJ cattails 11 1,215.77 30 2,025.00 South Lake 1101 Brevard Brevard SJ Torpedograss 0.00 2 200.00 South Lake Talmadge 60 Volusia Volusia SJ F 1.8 443.60 8 1,440.00 South Lake Talmadge 60 Volusia Volusia SJ H 0 0.00 2 1,000.00 South Lake Talmadge 60 Volusia Volusia SJ S.cubensis 0.3 57.83 3 480.00 South Lake Talmadge 60 Volusia Volusia SJ snag trees 0 0.00 1,500.00 Spring, Lake 25 Polk Polk SW F 1.5 75.24 2 300.00 Spring, Lake 25 Polk Polk SW H 6.5 2,249.16 20 14,000.00 St. Johns River 96000 Applied Aquatic St. Johns SJ F 98 8,041.31 1200 175,000.00 St. Johns River Brevard Brevard SJ F 227 18,957.70 400 39,152.00 St. Johns River 96000 SJRWMD St. Johns SJ F 191 29,798.90 150 24,000.00 St. Johns River 96000 USACOE St. Johns SJ F 5241 776,454.15 0 0.00 St. Johns River 96000 Applied Aquatic St. Johns SJ H 0.00 15 2,200.00 St. Johns River 96000 SJRWMD St. Johns SJ H 0 0.00 25 16,250.00 St. Johns River 96000 Applied Aquatic St. Johns SJ B. Pepper 0.00 15 2,250.00 St. Johns River 96000 SJRWMD St. Johns SJ Frogsbit 0 0.00 2 320.00 St. Johns River 96000 Applied Aquatic St. Johns SJ Paragrass 0.00 20 3,000.00 St. Johns River 96000 Applied Aquatic St. Johns SJ tallow 0.00 5 750.00 St. Johns River 96000 Applied Aquatic St. Johns SJ Taro 0.00 15 2,250.00 St.Johns Creeks Applied Aquatic St. Johns SJ Parrots-feather 0.00 20 2,900.00 St.Johns Creeks Applied Aquatic St. Johns SJ Pennywort 0.00 20 2,900.00 St.Johns Creeks Applied Aquatic St. Johns SJ snag trees 0.00 80 0.00 St.Johns Creeks Applied Aquatic St. Johns SJ Tussocks 103 89,775.00 50 9,000.00 Stearns Creek 45 Highlands Highlands SW F 2 500.36 1 95.00 Stearns Creek 45 Highlands Highlands SW snag trees 0 0.00 1,000.00 Stearns Creek 45 Highlands Highlands SW Taro 0 0.00 1 95.00 Stella, Lake 308 NaturChem Putnam SJ Taro 0 0.00 1 200.00 Stella, Lake 308 NaturChem Putnam SJ Torpedogras 0 0.00 0.5 100.00 Stella, Lake 308 NaturChem Putnam SJ F 1 317.62 4.5 463.00 Stella, Lake 308 NaturChem Putnam SJ H 0.2 192.26 3 2,100.00 Summit, Lake 67 Polk Polk SW F 3.25 642.50 2 300.00 Summit, Lake 67 Polk Polk SW H 26.25 15,805.68 35 24,500.00 Surveyors, Lake 293 Polk Polk SW F 4 1,174.02 10 1,500.00 Surveyors, Lake 293 Polk Polk SW H 27.99 Susan, Lake 81 Lake Lake SJ F 7.5 1,781.81 20 3,000.00 Susan, Lake 81 Lake Lake SJ Paragrass 0 0.00 0.25 38.00 Suwannee Lake 63 FL Environmental Suwannee SR F 32.65 6,421.99 10 1,000.00 Suwannee River 12000 FL Environmental Dixie SR F 121.06 21,014.08 150 18,750.00 Suwannee River 12000 FL Environmental Dixie SR H 0 0.00 5 3,250.00 Suwannee River 12000 FL Environmental Dixie SR Pennywort 0 0.00 5 1,000.00 Suwannee River 12000 FL Environmental Dixie SR Snagging 7,665.00 3,000.00 Suwannee River 12000 FL Environmental Dixie SR Taro 0 0.00 10 2,000.00 Suwannee River 12000 FL Environmental Dixie SR Torpedogras 0 0.00 2.5 500.00 Swift Creek 568 FL Environmental Union SR Torpedogras 0 0.00 0.1 20.00 Swoope Lake 88 Polk Polk SW F 0 214.22 2 300.00 Swoope Lake 88 Polk Polk SW H 61.5 5,200.36 50 35,000.00 Talquin, Lake 8850 Applied Aquatic Gadsden NW F 142.5 14,301.57 100 12,500.00 Talquin, Lake 8850 Applied Aquatic Gadsden NW S.cubensis 0 0.00 50 7,500.00 Tarpon, Lake 2534 SWFWMD Pinellas SW F 104 18,128.26 100 20,000.00 Tarpon, Lake 2534 SWFWMD Pinellas SW H 225.35 71,257.32 150 125,000.00 FY 07-08 Water FY 06-07 Acres FY 07-08 Body Acres FY 06-07 Ctrl Dollars

Water Body Acres Contractor County WMD Plant Type Treated Dollars Spent Allocated Allocated Tarpon, Lake 2534 SWFWMD Pinellas SW cattails 2.2 707.72 Tarpon, Lake 2534 SWFWMD Pinellas SW Coontail 0 0.00 20 12,000.00 Tarpon, Lake 2534 SWFWMD Pinellas SW Tussocks 0 0.00 2 5,000.00 Tennessee, Lake 112 Polk Polk SW F 0 251.38 2 300.00 Tenoroc Pits 1200 Polk Polk SW F 76 13,360.21 150 22,500.00 Tenoroc Pits 1200 Polk Polk SW H 0 0.00 75 52,500.00 Thomas Creek NaturChem SJ F 0 569.52 Thomas, Lake 73 Polk Polk SW F 0 0.00 2 300.00 Thomas, Lake 73 Polk Polk SW H 0.00 5 3,500.00 Thonotosassa, Lk 819 Hillsborough HillsboroughSW F 6.5 2,288.91 15 3,456.60 Thonotosassa, Lk 819 SWFWMD HillsboroughSW F 60 9,234.48 50 7,500.00 Thonotosassa, Lk 819 Hillsborough HillsboroughSW H 0 0.00 2 1,552.40 Thonotosassa, Lk 819 SWFWMD HillsboroughSW H 18.25 13,013.20 20 8,000.00 Thonotosassa, Lk 819 SWFWMD HillsboroughSW Alligatorwee 0 0.00 10 0.00 Thonotosassa, Lk 819 Hillsborough HillsboroughSW cattails 0 0.00 5 893.35 Thonotosassa, Lk 819 SWFWMD HillsboroughSW hymenachne 0.00 2 500.00 Thonotosassa, Lk 819 SWFWMD HillsboroughSW Limnoph 0.00 4 1,000.00 Thonotosassa, Lk 819 SWFWMD HillsboroughSW Parrots-feath 0 0.00 5 0.00 Thonotosassa, Lk 819 SWFWMD HillsboroughSW Primrose 0 0.00 10 0.00 Thonotosassa, Lk 819 SWFWMD HillsboroughSW S.cubensis 0 0.00 15 0.00 Tibet, Lake 1198 Orange Orange SF F 2 437.69 20 1,920.00 Tibet, Lake 1198 Orange Orange SF H 22.75 32,360.86 100 139,687.75 Tiger, Lake 2200 Polk Polk SF F 51.5 9,411.86 250 37,500.00 Tiger, Lake 2200 Polk Polk SF H 0 0.00 5 3,500.00 Tosohatchee Applied Aquatic SJ F 1.5 217.11 Townsend Lake 110 FL Environmental Lafayette SR Taro 0 0.00 0.2 40.00 Tracy, Lake 136 Polk Polk SW F 0.5 157.26 10 1,500.00 Tracy, Lake 136 Polk Polk SW H 91.5 31,993.57 150 105,000.00 Trafford, Lake 1494 SFWMD Collier SF F 0 0.00 20 2,800.00 Triplet Chain Applied Aquatic Seminole SJ F 0 0.00 30 4,500.00 Triplet Chain Applied Aquatic Seminole SJ H 0 0.00 30 4,500.00 Trout Lake 273 SFWMD Osceola SF F 0 0.00 4 5,600.00 Trout Lake 102 Lake Lake SJ F 12.7 1,705.89 16 2,400.00 Trout Lake 273 SFWMD Osceola SF H 0 0.00 1 700.00 Trout Lake 102 Lake Lake SJ H 4.55 554.71 3 1,800.00 Trout Lake 102 Lake Lake SJ cattails 0 0.00 1 150.00 Tsala Floral City 19111 Citrus Citrus SW F 14 3,888.72 91 29,575.00 Tsala Floral City 19111 Citrus Citrus SW H 57 41,691.96 100 89,375.00 Tsala Floral City 19111 Citrus Citrus SW A. Lotus 0 0.00 21 4,725.00 Tsala Floral City 19111 Citrus Citrus SW Alligatorwee 0 238.91 9 3,150.00 Tsala Floral City 19111 Citrus Citrus SW bladderwrt 0 0.00 12 4,200.00 Tsala Floral City 19111 Citrus Citrus SW cattails 0 0.00 7 2,450.00 Tsala Floral City 19111 Citrus Citrus SW Chinese Ta 0 0.00 Tsala Floral City 19111 Citrus Citrus SW Coontail 0 248.52 79 31,600.00 Tsala Floral City 19111 Citrus Citrus SW F Heart 0 0.00 15 18,000.00 Tsala Floral City 19111 Citrus Citrus SW Fanwort 0.00 4 1,800.00 Tsala Floral City 19111 Citrus Citrus SW Frogsbit 0 0.00 9 3,150.00 Tsala Floral City 19111 Citrus Citrus SW Limnophila 0.00 3 2,400.00 Tsala Floral City 19111 Citrus Citrus SW Maidencane 0 0.00 2 700.00 Tsala Floral City 19111 Citrus Citrus SW Nitella 0.00 6 2,850.00 Tsala Floral City 19111 Citrus Citrus SW Nuphar 0 0.00 16 5,600.00 Tsala Floral City 19111 Citrus Citrus SW Parrots-feath 0 0.00 13 5,850.00 Tsala Floral City 19111 Citrus Citrus SW Paspalum 0 0.00 11 3,850.00 Tsala Floral City 19111 Citrus Citrus SW Pennywort 0 0.00 28 9,800.00 Tsala Floral City 19111 Citrus Citrus SW Pickerelweed 0 0.00 2 450.00 Tsala Floral City 19111 Citrus Citrus SW Pondwd 0 0.00 3 1,200.00 Tsala Floral City 19111 Citrus Citrus SW S.Naiad 5 1,477.10 25 11,250.00 Tsala Floral City 19111 Citrus Citrus SW Smartweed 0 0.00 5 1,750.00 Tsala Floral City 19111 Citrus Citrus SW Torpedogras 0 0.00 6 2,100.00 Tsala Floral City 19111 Citrus Citrus SW Tussocks 77.24 86,258.78 58 130,500.00 FY 07-08 Water FY 06-07 Acres FY 07-08 Body Acres FY 06-07 Ctrl Dollars

Water Body Acres Contractor County WMD Plant Type Treated Dollars Spent Allocated Allocated Tsala Floral City 19111 Citrus Citrus SW Willows 0 0.00 16 5,600.00 Tsala Hernando 19111 Citrus Citrus SW F 8.5 3,158.78 70 22,100.00 Tsala Hernando 19111 Citrus Citrus SW H 214 145,273.33 223 245,360.00 Tsala Hernando 19111 Citrus Citrus SW A. Lotus 1 263.44 30.5 6,863.00 Tsala Hernando 19111 Citrus Citrus SW bladderwrt 0 248.52 34 11,900.00 Tsala Hernando 19111 Citrus Citrus SW cattails 0 0.00 18 6,300.00 Tsala Hernando 19111 Citrus Citrus SW Coontail 0 0.00 19 7,600.00 Tsala Hernando 19111 Citrus Citrus SW Fanwort 6.1 2,912.13 58.5 26,325.00 Tsala Hernando 19111 Citrus Citrus SW Frag Lily 0 0.00 24.5 8,575.00 Tsala Hernando 19111 Citrus Citrus SW Frogsbit 0 0.00 1.5 525.00 Tsala Hernando 19111 Citrus Citrus SW Limnoph 0 0.00 0.5 400.00 Tsala Hernando 19111 Citrus Citrus SW Maidencane 0 0.00 11.5 4,025.00 Tsala Hernando 19111 Citrus Citrus SW Nitella 0 0.00 40 19,000.00 Tsala Hernando 19111 Citrus Citrus SW Nuphar 22.5 3,303.16 55 19,250.00 Tsala Hernando 19111 Citrus Citrus SW Pennywort 0 0.00 3 1,050.00 Tsala Hernando 19111 Citrus Citrus SW Pickerelweed 0 0.00 10 2,250.00 Tsala Hernando 19111 Citrus Citrus SW Pondwd 0 0.00 18.5 7,400.00 Tsala Hernando 19111 Citrus Citrus SW S.Milfoil 0 0.00 5 2,250.00 Tsala Hernando 19111 Citrus Citrus SW S.Naiad 23.7 8,761.68 43 19,350.00 Tsala Hernando 19111 Citrus Citrus SW Torpedogras 0 0.00 10.5 3,675.00 Tsala Hernando 19111 Citrus Citrus SW Tussocks 200.79 564,524.53 246 425,000.00 Tsala Hernando 19111 Citrus Citrus SW Watersheild 0 0.00 17 7,650.00 Tsala Hernando 19111 Citrus Citrus SW Willows 0 0.00 12 4,200.00 Tsala Inverness 19111 Citrus Citrus SW F 20 6,628.93 95 30,875.00 Tsala Inverness 19111 Citrus Citrus SW H 146.25 97,331.78 638 570,215.00 Tsala Inverness 19111 Citrus Citrus SW A. Lotus 1.5 317.27 35 7,875.00 Tsala Inverness 19111 Citrus Citrus SW Alligatorweed 0.00 1 350.00 Tsala Inverness 19111 Citrus Citrus SW bladderwrt 7 2,067.77 32.5 11,375.00 Tsala Inverness 19111 Citrus Citrus SW cattails 0 166.34 13.5 4,725.00 Tsala Inverness 19111 Citrus Citrus SW Coontail 0 0.00 41.5 16,600.00 Tsala Inverness 19111 Citrus Citrus SW Fanwort 12.91 5,164.00 172 77,400.00 Tsala Inverness 19111 Citrus Citrus SW Frag Lily 0 0.00 3 1,050.00 Tsala Inverness 19111 Citrus Citrus SW Frogsbit 0 0.00 14 4,900.00 Tsala Inverness 19111 Citrus Citrus SW Limnoph 0 0.00 12 9,600.00 Tsala Inverness 19111 Citrus Citrus SW Maidencane 0 0.00 2.5 875.00 Tsala Inverness 19111 Citrus Citrus SW Nitella 0.00 22.5 10,688.00 Tsala Inverness 19111 Citrus Citrus SW Nuphar 17.5 4,483.44 68 23,800.00 Tsala Inverness 19111 Citrus Citrus SW Parrots-feath 4 1,295.42 13 5,850.00 Tsala Inverness 19111 Citrus Citrus SW Pennywort 0 0.00 5.5 1,925.00 Tsala Inverness 19111 Citrus Citrus SW Pickerelweed 0 0.00 11 2,475.00 Tsala Inverness 19111 Citrus Citrus SW Pondwd 0 0.00 26 10,400.00 Tsala Inverness 19111 Citrus Citrus SW S.Milfoil 0 0.00 1.5 675.00 Tsala Inverness 19111 Citrus Citrus SW S.Naiad 8 5,198.19 37 16,650.00 Tsala Inverness 19111 Citrus Citrus SW sawgrass 0 0.00 2 540.00 Tsala Inverness 19111 Citrus Citrus SW Smartweed 0 0.00 1 350.00 Tsala Inverness 19111 Citrus Citrus SW Torpedogras 0 0.00 12.5 4,375.00 Tsala Inverness 19111 Citrus Citrus SW Tussocks 218.17 372,344.89 180 236,250.00 Tsala Inverness 19111 Citrus Citrus SW Willows 0 0.00 15.5 5,425.00 Tulane, Lake 89 Highlands Highlands SW H 0 86.17 1 730.00 Turtle Mound Canal 27 Brevard Brevard SJ F 0 0.00 1 73.73 Umatilla, Lake 161 Lake Lake SJ F 0 341.75 0.5 75.00 Underhill, Lake 142 Orlando Orange SJ H 0 0.00 100 85,000.00 Underhill, Lake 143 Orlando Orange SJ Torpedogras 0 0.00 5 750.00 Upper Myakka Lake 1020 SWFWMD Sarasota SW F 11 1,566.90 110 19,250.00 Upper Myakka Lake 1020 SWFWMD Sarasota SW H 0 0.00 5 5,000.00 Upper Myakka Lake 1020 SWFWMD Sarasota SW Frogsbit 0 0.00 5 1,000.00 Upper Myakka Lake 1020 SWFWMD Sarasota SW hymenachne 0 0.00 2.5 1,000.00 Upper Myakka Lake 1020 SWFWMD Sarasota SW paragrass 0 0.00 2.5 1,000.00 Upper Myakka Lake 1020 SWFWMD Sarasota SW Tussocks 0 0.00 5 3,000.00 Upper Taylor Crk 32 SFWMD OkeechobeeSF F 220.4 17,017.79 200 28,000.00 FY 07-08 Water FY 06-07 Acres FY 07-08 Body Acres FY 06-07 Ctrl Dollars

Water Body Acres Contractor County WMD Plant Type Treated Dollars Spent Allocated Allocated Upper Taylor Crk 32 SFWMD OkeechobeeSF hymenachne 0 0.00 2 340.00 Upper Taylor Crk 32 SFWMD OkeechobeeSF Pennywort 0 0.00 10 1,500.00 Viola, Lake 73 Highlands Highlands SW H 0 0.00 1 730.00 250 Applied Aquatic Jefferson NW F 144 15,612.69 100 12,500.00 Wacissa River 250 Applied Aquatic Jefferson NW H 0 0.00 10 10,000.00 300 Applied Aquatic Wakulla NW H 75 68,217.40 75 2,500.00 Wales, Lake 326 Polk Polk SW F 1.5 414.44 2 300.00 Wales, Lake 326 Polk Polk SW H 0 130.60 1 700.00 Washington Applied Aquatic SJ F 68 6,389.30 Washington, Lake 4362 SJRWMD Brevard SJ F 47 8,767.39 100 16,000.00 Washington, Lake 4362 SJRWMD Brevard SJ H 0 0.00 150 97,500.00 Washington, Lake 4362 SJRWMD Brevard SJ Paragrass 0.00 1 160.00 Washington, Lake 4362 SJRWMD Brevard SJ Taro 1 135.52 50 8,000.00 Watermellon Pond 531 FL Environmental Alachua SR F 0.25 52.98 1 100.00 Watermellon Pond 531 FL Environmental Alachua SR H 0 0.00 0.3 195.00 Watertown Lake 46 FL Environmental Columbia SR F 0 0.00 0.2 20.00 Watertown Lake 46 FL Environmental Columbia SR H 0 0.00 0.2 130.00 Watertown Lake 46 FL Environmental Columbia SR Taro 0 0.00 0.1 20.00 Watertown Lake 46 FL Environmental Columbia SR Torpedogras 0 0.00 0.1 20.00 Wauberg Lake 248 NaturChem Alachua SJ F 0.33 139.26 2 250.00 Wauberg Lake 248 NaturChem Alachua SJ Torpedogras 0 0.00 0.5 100.00 Wauseon Bay 138 Orange Orange SF F 0 0.00 8 768.00 Wauseon Bay 138 Orange Orange SF H 0 0.00 10 13,960.00 60 SWFWMD Hernando SW F 0 0.00 5 750.00 Weeki Wachee River 60 SWFWMD Hernando SW H 7 12,054.40 20 20,000.00 Weeki Wachee River 60 SWFWMD Hernando SW cattails 0.6 48.65 1 250.00 Weeks, Lake 55 Hillsborough HillsboroughSW F 304.55 598.43 5 1,152.20 Weeks, Lake 55 Hillsborough HillsboroughSW cattails 0 0.00 1 178.67 Weir, Lake 5685 NaturChem Marion SJ F 15 2,600.02 12 1,200.00 Weir, Lake 5685 NaturChem Marion SJ H 5.93 6,905.87 20 22,000.00 Weir, Lake 5685 NaturChem Marion SJ cattails 0 0.00 1 200.00 234 Applied Aquatic Orange SJ F 116.5 14,821.34 150 21,750.00 Wekiva River 234 Applied Aquatic Orange SJ H 0 1,888.50 10 8,500.00 Wekiva River 234 Applied Aquatic Orange SJ cattails 6.5 694.59 35 5,075.00 Wekiva River 234 Applied Aquatic Orange SJ Paragrass 0 0.00 15 2,175.00 Wekiva River 234 Applied Aquatic Orange SJ Parrots-feather 0.00 5 725.00 Wekiva River 234 Applied Aquatic Orange SJ snag trees 0 7,770.77 15,000.00 Wekiva River 234 Applied Aquatic Orange SJ Taro 0 0.00 15 2,175.00 Wekiva River 234 Applied Aquatic Orange SJ Torpedogras 0 0.00 5 725.00 Weohyakapka, Lake 7532 Polk Polk SF F 10 3,321.49 100 15,000.00 Weohyakapka, Lake 7532 Polk Polk SF H 0 0.00 300 210,000.00 West Lk Toho. 18810 SFWMD Osceola SF F 284.53 50,571.80 1000 140,000.00 West Lk Toho. 18810 SFWMD Osceola SF H 3865.24 687,016.91 5000 350,000.00 West Lk Toho. 18810 SFWMD Osceola SF Frogsbit 0 0.00 50 7,500.00 West Lk Toho. 18810 SFWMD Osceola SF Tussocks 774 76,579.00 5 5,000.00 White Heron Canal Brevard Brevard SJ F 6 482.82 10 804.70 Wickham Rd, Canal 27 Brevard Brevard SJ F 8 968.12 8 855.60 Wildcat Lake 232 Lake Lake SJ F 0 235.90 1 150.00 Wildcat Lake 232 Lake Lake SJ H 0 177.54 0.5 300.00 Wildcat Lake 232 Lake Lake SJ Torpedograss 0.00 0.5 75.00 Wilson, Lake 32 Lake Lake SJ F 0.125 267.38 6 900.00 Wilson, Lake 32 Lake Lake SJ H 0 0.00 0.5 300.00 Wilson, Lake 32 Lake Lake SJ S.cubensis 0 0.00 2 300.00 Winder Rd. Canal 26 Brevard Brevard SJ F 2.5 249.16 8 880.16 Winder, Lake 1496 Applied Aquatic Brevard SJ F 158 16,154.92 350 51,000.00 Winder, Lake 1496 Applied Aquatic Brevard SJ H 0 0.00 75 12,000.00 Winder, Lake 1496 Applied Aquatic Brevard SJ Taro 0 0.00 15 2,200.00 Winder, Lake 1496 Applied Aquatic Brevard SJ Torpedogras 0 0.00 10 1,500.00 Winder, Lake 1496 Applied Aquatic Brevard SJ Trees 30 2,901.60 Winona, Lake 75 Lake Lake SJ F 0 103.95 11 1,650.00 FY 07-08 Water FY 06-07 Acres FY 07-08 Body Acres FY 06-07 Ctrl Dollars

Water Body Acres Contractor County WMD Plant Type Treated Dollars Spent Allocated Allocated Winona, Lake 75 Lake Lake SJ H 0.71 352.74 2.5 1,500.00 Winona, Lake 75 Lake Lake SJ Primrose 0 0.00 2 300.00 Winterset, Lake 548 Polk Polk SW F 0 0.00 2 300.00 Winterset, Lake 548 Polk Polk SW H 21 391.79 125 87,500.00 Withlacoochee River 3600 SWFWMD Citrus SW F 442 57,786.71 600 100,000.00 Withlacoochee River 3600 SWFWMD Citrus SW H 31.3 22,264.02 500 120,000.00 Withlacoochee River 3600 SWFWMD Citrus SW Coontail 0 0.00 5 2,000.00 Withlacoochee River 3600 SWFWMD Citrus SW hymenachne 0 0.00 5 1,000.00 Withlacoochee River 3600 SWFWMD Citrus SW Pennywort 7 1,078.15 15 3,000.00 Withlacoochee River 3600 SWFWMD Citrus SW S.cubensis 28.7 6,255.09 10 2,000.00 Withlacoochee River 3600 SWFWMD Citrus SW Smartweed 0 0.00 10 2,000.00 Withlacoochee River 3600 SWFWMD Citrus SW Taro 0 0.00 10 2,000.00 Withlacoochee River 3600 SWFWMD Citrus SW Trees 0 6,296.43 Withlacoochee River 3600 SWFWMD Citrus SW Willow 0 0.00 5 1,000.00 Withlacoohee 647 FL Environmental Hamilton SR F 0 0.00 0.5 50.00 Wood Lake (John) 150 Polk Polk SW F 9.5 2,390.21 25 3,750.00 Wood Lake (John) 150 Polk Polk SW H 0 0.00 15 10,500.00 Woodruff, Lake 2200 Applied Aquatic V, L SJ H 0 124,162.50 365 5,000.00 Yale, Lake 4042 Lake Lake SJ F 10.78 2,457.76 19 2,850.00 Yale, Lake 4042 Lake Lake SJ H 2.487 1,922.43 8 4,800.00 Yale, Lake 4042 Lake Lake SJ cattails 0 0.00 1 150.00 Yale, Lake 4042 Lake Lake SJ Torpedogras 0 0.00 1 150.00