Preemergence Herbicides for Use in Ornamentals1 Robert H

OH-94

Preemergence Herbicides for Use In Ornamentals1 Robert H. Stamps, Diane K. Rock and Jeffrey G. Norcini2

Preemergence herbicides, by definition, are herbicides that are applied prior to weed seed germination. Control of weeds using preemergence herbicides is most successful when the correct herbicide is applied in the correct manner to a weed-free growing medium prior to weed seed germination. In field or landscape situations, the soil should be freshly tilled, and large clods of soil broken up. The growing medium, whether soil or soilless, should be settled and firm at the time of herbicide application.

Herbicides should be applied uniformly to the target area and then immediately incorporated into the growing medium. Uniform herbicide coverage is dependent on good application technique and, for mechanized application, on well-maintained and calibrated equipment. Incorporation is generally employed to reduce herbicide losses from volatility and photodecomposition, but it also serves to activate some herbicides. It is commonly accomplished by applying water using overhead irrigation, often about 0.5 inch [1.2 cm], after the herbicide has been applied. Herbicides can also be mechanically incorporated by mixing the herbicide into the top layer of the growing medium, generally to a depth of 1–3 inches [2.5–7.5 cm]. Recommendations regarding the depth of mechanical incorporation and/or the amount of irrigation water to apply to activate/incorporate the herbicides should be followed carefully in order to minimize the possibility of crop injury.

1. This is document OH-94, one of a series of the Department of Environmental Horticulture, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. First published March 1993. Revised November 2005. Please visit the EDIS Web site at http://edis.ifas.ufl.edu.

2. Robert H. Stamps and Diane R. Rock, Professor and Research Assistant, respectively, Mid-Florida Research and Education Center-Apopka; and Jeffrey G. Norcini, Assoc. Professor, North Florida Research and Education Center-Quincy.

Mention of a commercial or proprietary product or chemical does not constitute a recommendation or warranty of the product by the authors or the University of Florida, Institute of Food and Agricultural Sciences, nor does it imply its approval to the exclusion of other products that may also be suitable. Products should be used according to label instructions and safety equipment required on the label and by federal or state law should be employed. Users should avoid the use of chemicals under conditions that could lead to ground water contamination. Pesticide registrations may change so it is the responsibility of the user to ascertain if a pesticide is registered by the appropriate state and federal agencies for an intended use.

The Institute of Food and Agricultural Sciences (IFAS) is an Equal Employment Opportunity - Affirmative Action Employer authorized to provide research, educational information and other services only to individuals and institutions that function without regard to race, color, sex, age, disability or national origin. U.S. Department of Agriculture, Cooperative Extension Service, University of Florida, IFAS, Florida A. & M. University Cooperative Extension Program, and Boards of County Commissioners Cooperating. Many of the preemergence herbicides used in ornamentals are formulated as granular materials and should be applied evenly over the treated area. Avoid applications to moist foliage or to whorled or other foliage types that will accumulate and trap the granules. Application equipment used to broadcast these formulations should not grind the granules or increase the amount of dust; this may generate potentially dangerous conditions to nearby plants and people. Use materials that have been screened of fine particles, if available.

For liquid applications, spray pressure should be constant and adequate to maintain proper spray pattern for uniformity and ensure droplet penetration through the plant canopy. Excessive pressure can lead to drift and damage to non-target plants. Spray volume should be sufficient for thorough coverage. Herbicides should be thoroughly mixed (agitated) in spray tanks to obtain uniform results, and spray nozzle openings (orifices) should be checked regularly and replaced when wear becomes evident. Spray adjuvants that enhance coverage, penetration and/or persistence of herbicides can be added to some spray mixtures, especially if the mixtures are applied so that the crop foliage is not treated. Test spray solutions that contain any new adjuvant for phytotoxicity on a small part of your crop, just as you would test any new pesticide.

Chemigation is a special type of liquid application in which herbicides are applied using the irrigation equipment. It is the least labor-intensive method to apply herbicides; however, few herbicides are labeled for application in this manner (see Table 1). In addition, some types of irrigation systems (e.g., drip) do not apply water to all areas that need to be treated and/or do not have adequate uniformity for this use. Herbicide formulations applied through irrigation systems must not clog nozzle orifices. Florida and other states have laws that require that safety equipment must be provided if chemicals are to be injected into irrigation systems. Some of the equipment necessary to prevent contamination of the water supply includes check valves, vacuum breakers, low-pressure drains, shutoff valves, remote chemical storage tanks and interconnected power supplies to injector and irrigation pumps.

Liquid herbicides should be measured volumetrically, i.e., using measuring cups, graduated cylinders, etc. Since dry pesticides vary in density, it is not possible to give accurate volumetric conversions across brands and formulations so those formulations must be weighed.

It is a good practice to keep records of all pesticide applications, even of nonrestricted use pesticides — including EPA registration and product lot numbers. These records can be useful for planning future weed control measures. In addition, they can be invaluable if crop damage occurs.

Regardless of the herbicide or application method used, it is strongly recommended that the effects should be evaluated against untreated controls under your particular conditions before treating large areas. This is especially important when there is a statement on the label permitting use of the product on an ornamental not specifically listed on the label. Treat a limited area or number of plants and wait 2 to 3 weeks, or longer if the label recommends, for any phytotoxic effects to appear. Be aware that the larger the area treated, the more likely that phytotoxicity may occur, especially due to volatilization. Also, damage may not occur the first time a herbicide is applied, but may

Preemergence Herbicides for Use in Ornamentals Page 2 show up with repeated applications. Several formulations of a herbicide may be available with varying concentrations; consequently, recommendations on the manufacturer's label should be followed explicitly. These herbicides formulations are labeled for application in certain environments (outdoors, in shadehouses and/or in greenhouses) and specific locations (containers, field and/or landscape) and can only be applied in those specified environments and locations.

Although most preemergence herbicides labeled for use in ornamentals have relatively low acute mammalian toxicities, they are potentially dangerous if handled improperly and, therefore, the safety precautions on the label(s) must be followed. Read the entire label, including the small print, before buying or using the herbicide. Wear personal protective equipment (PPE) and comply with restricted entry intervals (REI) (see Table 1). Keep the telephone number and address of the nearest County Poison Control Center listed in a convenient location in case of an accidental poisoning. Have clean copies of herbicide labels and material safety data sheets (MSDS) available to be taken to the Poison Control Center or hospital in the event of an emergency. If a herbicide is labeled for use specifically in a particular state [for example, 24(c) Special Local Need labeling in Florida], obtain a copy of the supplemental label from your supplier when you purchase the product; otherwise, you will be using it illegally.

Many of these herbicides have low solubilities in water and are quite strongly held to binding sites in growing media and are, therefore, not readily leachable. However, the relatively long persistence (long degradation half-lives, T½) of some of these products creates the potential for leaching losses to still occur with potential effects on ground water. Relative leaching potential indexes (RLPI) for the listed products range from 3 (high potential to leach) to >2,000 (low potential for leaching, very immobile) and are given, along with relative run-off potential indexes (RRPI), in Table 1. RRPIs range from 1 (high potential to be lost in runoff) to 333 (lower run-off potential). For more information about pesticide leaching and run-off, read Managing Pesticides for Ornamentals Production and Water Quality Protection (University of Florida, Institute of Food and Agricultural Sciences, Cooperative Extension Service, Soil Science Department Circular 991, available at http://edis.ifas.ufl.edu/).

As an aid to help delay the selection of herbicide-resistant weeds, the herbicide group to which each product belongs is listed in Table 1. The groups are based according to primary sites/modes of action (Weed Technology 11:384–393 [1997]) and can be used to select herbicides that have differing sites/modes of action. Repeated use of a herbicide or herbicides having the same sites of action can, over time, cause development of weeds resistant to those herbicides.

Store herbicides in their original labeled containers, out of reach of children. All pesticides should be locked in secure facilities. When containers are empty, rinse with water at least three times and pour the rinse water into the spray tank. Dispose of empty containers promptly and safely (according to local, state and federal disposal laws).

In Table 2, weeds are listed alphabetically by scientific name and along with the preemergence herbicides that control (C), suppress (S) or do not control (N) each weed. Table

Preemergence Herbicides for Use in Ornamentals Page 3 3 is similar except that the weeds are listed alphabetically by common name(s). The information in these tables is derived from product labels, and published and unpublished research results. A herbicide may provide variable weed control depending on soil, irrigation and other variables. Where the weed entry in the tables lists only a genus, the labels must be checked to see which species in that genus are controlled by each herbicide.

Table 4 lists the tolerances of ornamentals to preemergence herbicides, with the table subdivided into Trees and Shrubs, Groundcovers and Vining Plants, and Annuals and Perennials. The plants are listed alphabetically by scientific name. This information is derived from product labels. It is only presented as a guide and does not imply that a herbicide can be used in or around that ornamental species in all sites (nursery, landscape, greenhouse). In Table 4, Y indicates that the crop is on product label and N indicates that the product should not be used on the crop. Please note that not all plant species and cultivars listed on the herbicide labels are included in the table and some plants are listed in the table even though, at the current time, they are not listed on any of the herbicide labels. Hopefully, research and future label changes will help alter this situation for this latter group of plants.

To help in situations where the reader does not know the scientific name of the crop, Table 5 is included. It lists the common names of crops beside their scientific names; however, readers should be aware that the same common name may be used for more than one plant so the true identity of the crop should be ascertained before herbicides are applied.

When selecting a herbicide, both of the factors listed below must be determined to legally use a herbicide in or around an ornamental species; the information below is on the product label:

1. Determine the tolerances of specific species, varieties, or cultivars, if applicable, AND 2. Determine which sites the herbicide can be used on, that is – nursery (container or field); landscape (commercial, public, or residential); enclosed greenhouse.

Please report any errors, omissions and/or updates to Bob Stamps ([email protected]). Thank you.

Preemergence Herbicides for Use in Ornamentals Page 4 3 group Herbicide 2 RRPI 2 r pressure (volatility), RLPI ce herbicides labeled for this table. Be aware that not all 1 135.00 67 42 20 (mPa) Vapor pressure 5 2424 0.27 0.27 >2,000 1 >2,000 1 14 24 14 0.27 >2,000 1 14 nd REI (hours) 6 6 6 4 Labeled for are also available but not listed in chemigation labeling for chemigation, restricted-entry intervals (REI), vapo als or in all locations (greenhouse, landscape, nursery). erdicon na 24 0.27 + 0.10 533 1 14 + egal Chemical na 24 0.27 + 0.10 533 1 14 + Manufacturer or distributor ulations containing preemergence herbicides tential indexes (RLPI, RRPI), and herbicide group (mode of action) for some preemergen Common name (active ingredient) dithiopyr AgroSciences Dow NO 12 0.53 410 15 3 pronamidealachlor AgroSciences Dow Monsanto NO 24 NO 11.31 12 133 20 2.93 15 113 113 15 7 1EC, 2SC, 8 0.25G flumioxazin USA Valent na 12 0.32 130 130 14 ® 4FL, 65WG prodiamine Syngenta NO 12 0.003 1,080 1 3 ™ 50DF 2G napropamide napropamide United Phosphorus Phosphorus United NO na 12 12 0.53 0.53 100 20 100 20 15 15 ® 4G dichlobenil Uniroyal na 12 135.00 67 42 20 2EC oxyfluorfen Agan Makhteshim NO ® ® 6F, 75WP DCPA AMVAC YES 12 0.33 500 2 3 ® 3.8ACS pendimethalin Olympic Horticultural NO 24 3.99 556 2 3 Trade names, active ingredients, manufacturers/distributors, 7E EPTC Gowan YES 12 4,700 333 333 8 4G dichlobenil PBI/Gordon na ® ® ® 70DG imazaquin BASF NO 12 0.003 3 3 2 ® ® 4EC ® 50WP 3G oxyfluorfen + pendimethalin Scotts na 24 0.27 + 3.99 556 1 14 + 3 1.6E, 2EC oxyfluorfen AgroSciences Dow NO ® ® ® ®

Preemergence Herbicides for Use in Ornamentals relative leaching and run-off po ornamental crops. Various fertilizer form these products are labeled for use on containerized ornament Trade name Gallery™ 75DFGoal Hurdle isoxaben AgroSciences Dow NO 12 0.05 140 7 21 Galigan 40WSP Eptam Lasso OxiFlo 2EC oxyfluorfen FarmSaver.com NO OO-Herbicide™ 3G oxyfluorfen + oxadiazon R Lasar™ 3GOH2 oxyfluorfen + oxadiazon V Devrinol Dimension Bensumec™ 4LFBroadStar Casoron bensulide PBI/Gordon NO dry when 0.10 83 8 8 Barrier Table 1. Barricade Kerb Cavalcade™ 65WDGCorral™ 2.68G prodiamineDacthal pendimethalin Agro USA Sipcam Scotts NO 12 na 0.003 1,080 12 1 3.99 3 556 2 3 Devrinol Image Table 1. Trade names, active ingredients, manufacturers/distributors, labeling for chemigation, restricted-entry intervals (REI), vapor pressure (volatility), relative leaching and relative run-off potential indexes (RLPI, RRPI), and herbicide group (mode of action) for some preemergence herbicides labeled for ornamental crops. Various fertilizer formulations containing preemergence herbicides are also available but are not listed in this table. Be aware that not all these products are labeled for use on containerized ornamentals or in all locations (greenhouse, landscape, nursery). Common name Manufacturer or Labeled for REI Vapor pressure Herbicide Trade name (active ingredient) distributor chemigation (hours) (mPa)1 RLPI2 RRPI2 group3 Pendulum® 2G pendimethalin BASF na 24 3.99 556 2 3 Pendulum® 3.8CS, 3.3EC, pendimethalin BASF NO 24 3.99 556 2 3 60WDG Pennant Magnum® 7.6EC S-metolachlor Syngenta YES 24 4.2 22 22 15 Predict® 78.6WDG norflurazon Nufarm Turf & Specialty NO 12 0.004 233 47 12 Preen® 1.875G trifluralin + isoxaben Lebanon Seaboard na 12 14.63 + 0.05 140 2 3 + 21 Prefar® 4E bensulide Gowan YES 12 0.10 83 8 8 Pre-M® 3.3 EC pendimethalin Lesco NO 24 3.99 556 2 3 Pre-M® 60DG pendimethalin Lesco NO na 3.99 556 2 3 PrePair® 6G napropamide + oxadiazon Verdicon na 12 0.53 100 5 15 + 14 Pre-San® 7G, 12.5G bensulide PBI/Gordon na when dry 0.10 83 8 8 Princep® 4L simazine Syngenta NO 12 0.003 22 22 5 ProClipse™ prodiamine Nufarm Turf & Specialty NO 12 0.003 1,080 1 3 ProdiaGuard 65WDG prodiamine Control Solutions YES 12 0.003 1,080 1 3 RegalKade® 0.5G, 65WDG prodiamine Regal Chemical na, NO 12 0.003 1,080 1 3 RegalStar®G & II, 1.2G oxadiazon + prodiamine Regal Chemical na 12 0.10 + 0.003 533 1 14 + 3 Ronstar® 2G oxadiazon Bayer CropScience, Regal na 12 0.10 533 5 14 Ronstar® 50WSP oxadiazon Bayer CropScience NO 12 0.10 533 5 14 Rout® 3G oxyfluorfen + oryzalin Scotts na 24 0.27 + <0.001 300 1 14 + 3 trifluralin + isoxaben + 14.63 + 0.05 + Showcase™ 2.5G Dow AgroSciences na 24 140 1 3 + 21 + 14 oxyfluorfen 0.27 Simazine 4L simazine Drexel, Riverside, UAP YES 12 0.003 22 22 5 Simazine 90DF, 90WDG simazine Drexel, Riverside, UAP NO 12 0.003 22 22 5 Sim-Trol® 4L, 90DF simazine Sipcam Agro USA NO 12 0.003 22 22 5

Preemergence Herbicides for Use in Ornamentals Table 1. Trade names, active ingredients, manufacturers/distributors, labeling for chemigation, restricted-entry intervals (REI), vapor pressure (volatility), relative leaching and relative run-off potential indexes (RLPI, RRPI), and herbicide group (mode of action) for some preemergence herbicides labeled for ornamental crops. Various fertilizer formulations containing preemergence herbicides are also available but are not listed in this table. Be aware that not all these products are labeled for use on containerized ornamentals or in all locations (greenhouse, landscape, nursery). Common name Manufacturer or Labeled for REI Vapor pressure Herbicide Trade name (active ingredient) distributor chemigation (hours) (mPa)1 RLPI2 RRPI2 group3 Snapshot® 2.5TG trifluralin + isoxaben Dow AgroSciences na 12 14.63 + 0.05 140 2 3 + 21 SureGuard™ 51WDG flumioxazin Valent USA na 12 0.32 130 130 14 Surflan® 1.67G oryzalin Verdicon NO 249 <0.001 300 83 3 Surflan® 4AS Specialty oryzalin United Phosphorus, NO 249 <0.001 300 83 3 Verdicon Lebanon Seaboard, Treflan™ 5G trifluralin na 12 14.63 1330 2 3 Verdicon Weedfree 63™ 2G oxyfluorfen Harrell’s na 24 0.27 >2,000 1 14 Weedfree 75™ 5G oxyfluorfen + trifluralin Harrell’s na 24 0.27 + 14.63 1330 1 14 + 3 XL® 2G benefin + oryzalin Helena Chemical na 24 10.37 + <0.001 300 3 3 + 3 1 Vapor pressure at 25°C (77°F). 2 RLPI = relative leaching potential index, RRPI=relative runoff potential index. The higher the number, the less likely for herbicide movement by that mechanism. See Managing Pesticides for Ornamentals Production and Water Quality Protection (University of Florida, Institute of Food and Agricultural Sciences, Cooperative Extension Service, Soil Science Department Circular 991, available at http://edis.ifas.ufl.edu) for more details on these indexes. 3 Herbicide groups are based according to primary sites of action (Weed Technology 11:384–393, [1997]) and can be used to select herbicides that have differing sites of action. This information can be used to help select herbicides so as to minimize the potential for the development of herbicide-resistant weeds. 2 = ALS/AHAS inhibitors, 3 = microtubule assembly inhibitors, 5 = photosystem II inhibitors, 8 = lipid synthesis inhibitors, 12 = carotenoid biosynthesis inhibitors, 14 = PPO inhibitors, 15 = acetamides (unknown site of action), 20 = cellulose synthase inhibitors, 21 = inhibition of cell wall synthesis site B. 4 na = not applicable. 5 nd = no data. 6 Except conifer seedbeds irrigated with center pivot sprinkler irrigation. 7 Kerb® is a restricted use pesticide. 8 Lasso® is not labeled for use in certain locations; for example, Florida and Nassau and Suffolk counties in New York. Before using Lasso®, check to make sure it is registered for use in your area. 9 Workers may enter treated areas without required PPE during the reentry interval following ½ to 1 inch of rainfall or irrigation, if they are performing tasks that do not involve contact with the soil subsurface.

Preemergence Herbicides for Use in Ornamentals

Weedfree 75™ Weedfree

trifluralin + isoxaben + trifluralin

Treflan™

AS G/Surflan Surflan

® ®

simazine

amental crops (N = no/poor Showcase

Rout

Ronstar

CCCCC CCC

RegalStar

prodiamine

PrePair

Predict

Pennant Magnum Pennant

pendimethalin

ergence herbicides labeled for use on orn oxadiazon + oxyfluorfen

CCC

oxyfluorfen

4 12

OH2

Lasso

3 ®

Kerb

Image

C Gallery™

NS CC C

Eptam

Dimension

dichlobenil

CNCS/C ic name, and their susceptibilities to preem

Devrinol

Dacthal

® BroadStar™/SureGuard™ /CNSCC C CN C N CCCCS CCS CNCCCC CC NC CCCNN CCC C CCCCSCNCCC C CNN C CCC CCC

–

bensulide 1 C C CCC CC CS C CS SCCCCCCCCCCCC CC SCCCCCC CCCCCCCCCCCCCCCCCCC CCSCCCCCCS/CCCCCC N NN N S C NC S CNS/CNS NNNN NNN NC C N CC NSNS/CC C CS S NSSCS C CCSNC S NC SNCC C N C CCSCCCS SCCSC C S/C NN C NC SNCC N S/C CCCC S CSC S S CCS

E. ) ) ) 10 10 (synonym 10 (synonym ) (synonym 10 (synonym spp. spp.

, spp. E. supina , Weeds, listed alphabetically by scientif spp. spp. C control, S = suppression, C good control). Weed scientific name Table 2. Amaranthus Chenopodium Cerastium vulgatum Chamaesyce hirta Euphorbia hirta Ambrosia artemisiifolia Anthemis cotula Bidens bipinnata Brassica Commelina diffusa Cyperus compressus Cyperus esculentus Cyperus globulosus Bryum Capsella bursa-pastoris Cardamine C. humistrata, Euphorbia humistrata C. maculata maculata C. vermiculata, Euphorbia vermiculata

Preemergence Herbicides for Use in Ornamentals Table 2. Weeds, listed alphabetically by scientific name, and their susceptibilities to preemergence herbicides labeled for use on ornamental crops (N = no/poor control, S = suppression, C = good control). 5 9 AS ® ® 6 4 7 2 ® 1 ® 8 ® G/Surflan ® ® ® ® 3 ®

® ® ® ® ® ® ® Weed scientific name bensulide Treflan™ trifluralin + isoxaben Weedfree 75™ Weedfree XL Devrinol dichlobenil Dimension Eptam Gallery™ Image Kerb Lasso OH2 oxyfluorfen oxyfluorfen + oxadiazon pendimethalin Pennant Magnum Predict PrePair prodiamine RegalStar Ronstar Rout Showcase simazine Surflan BroadStar™/SureGuard™ Dacthal Cyperus rotundus NCS/C S Daucus carota NC C CNN C S/C Desmodium tortuosum CS Digitaria spp.10 C C CCCCCS SCCCS/CCCCCCCCCCCCCCCCC Eclipta spp.10 CCCCNSCS NCCCC Eleusine indica S/CCSC CC N CCCSCCS/CCCCCS/CCCS/CCCCCC Eupatorium capillifolium CCC CNCS3 SCCC C Euphorbia heterophylla –/C C Euphorbia hirta (see Chamaesyce hirta) Euphorbia humistrata (see C. humistrata) E. maculata, E. supina (see C. maculata) Euphorbia vermiculata (see C. vermiculata) Fatoua villosa CCCSCCSCCNS Gamochaeta spp.10 CCSCCCC CCC Geranium carolinianum C CCC CC C12 CCSCC Gnaphalium spp.10 (see Gamochaeta spp.) Isopteryquim albesceus C Kyllinga brevifolia CCC CSC/S S CC C C C C

® ® ® ® ® ® ® Weed scientific name bensulide Treflan™ trifluralin + isoxaben Weedfree 75™ Weedfree XL Devrinol dichlobenil Dimension Eptam Gallery™ Image Kerb Lasso OH2 oxyfluorfen oxyfluorfen + oxadiazon pendimethalin Pennant Magnum Predict PrePair prodiamine RegalStar Ronstar Rout Showcase simazine Surflan BroadStar™/SureGuard™ Dacthal Lepidium spp.10 CC C C CCCC S CCC CCC Marchantia polymorpha SNNN SNN CCS N Medicago lupulina CCC S/C S CS C Medicago trunculata C Mollugo verticillata NC CCCCCSCCCCCCCCCCCCCCCCCS SCC Murdannia nudiflora C Oenothera spp.10 NC S/CC CC12 CS SCNNSCCCC C Oxalis corniculata (synonym C NCC CC CCCCN/SNCCCCCCNC CCC O. stricta) Phyllanthus tenellus C N/S S/C N S/C C S/C S S C S/C Phyllanthus urinaria N/S S N S/C C S/C S S C S/C Pilea microphylla CC Poa annua C C CCCCNSC CSCCCCCC CCCCCCCCC Portulaca oleracea S C CCCCCC CCCCCCSCCCCCCCCCCCCC Richardia scabra CCNC CS C CCS C SCCCSCC Senecio vulgaris C C SSS SSCC C Solanum spp. N C S N C C C C C C N C C C S S C C S Sonchus spp.10 C SCC C CCCC SCNCCCCS S CCS Stachys floridana CN Stellaria media C CCCCCCCC CSCCN/SCCCCNCCCCCCCC Vicia sativa SS SC

® ® ® ® ® ® ® Weed scientific name bensulide Treflan™ trifluralin + isoxaben Weedfree 75™ Weedfree XL Devrinol dichlobenil Dimension Eptam Gallery™ Image Kerb Lasso OH2 oxyfluorfen oxyfluorfen + oxadiazon pendimethalin Pennant Magnum Predict PrePair prodiamine RegalStar Ronstar Rout Showcase simazine Surflan BroadStar™/SureGuard™ Dacthal 1 Bensumec™, Prefar® and Pre-San® 2 Barrier®, Casoron® — dichlobenil is highly volatile and, therefore, has the potential to be phytotoxic. Use with caution, avoid situations where gaseous concentrations can build up, apply when temperatures are low (volatility increases with increasing temperature), and incorporate immediately after application. 3 Lasso is not labeled for use in certain locations; for example, Florida and Nassau and Suffolk counties in New York. Before using Lasso, check to make sure it is registered for use in your area. 4 Goal®, Galigan®, OxiFlo, Weedfree 63™ 5 O-O Herbicide™, Lasar™ 6 Corral™, Hurdle®, Pendulum®, Pre-M® 7 Barricade®, Cavalcade™, ProClipse™, ProdiaGuard, RegalKade® 8 Princep®, Simazine, Sim-Trol® 9 Preen®, Snapshot™ TG 10 Check product labels for species controlled. 11 – = weed not on the label of this formulation. 12 Not all formulations of this active ingredient are labeled to control this weed(s).

Preemergence Herbicides for Use in Ornamentals

Weedfree 75™ Weedfree

trifluralin + isoxaben + trifluralin

Treflan™

AS G/Surflan Surflan

® ®

Showcase

simazine

tal crops (N=no/poor control, 8

Rout

Ronstar

SCCC C CC

RegalStar

prodiamine 7 3

S/C N

PrePair

Predict ® SC CSCCC

des labeled for use on ornamen

Pennant Magnum Pennant

pendimethalin

CS SCNNSCCCC C

oxyflourfen + oryzalin + oxyflourfen

oxyfluorfen

4 12 12

OH2

Lasso

3 ®

Kerb ®

tibilities to preemergence herbici

Image

Gallery™

Eptam

Dimension

dichlobenil

Devrinol

Dacthal

® BroadStar™\SureGuard™

CNCCC CC CCCNN C CCCSCCNCCC

bensulide 1 omnCcommon C SSS SSCC C

10 Weeds, listed alphabetically by common name, and their suscep geranium, Carolina C C C C C C C goosegrass S/CCSC CC N CC S/CCSC CCCSCCS/CCCCCS/CCS/CCCCCCC groundsel, goosegrass beggarweed, Floridabetony, Floridabittercress C C S Table 3. Weed common name(s) artilleryweed S=suppression, C=good control). cit C CCCdoveweed NSC NCCCC eclipta eveningprimrose C N C S/C C C C dogfennel C C C C N C S lers,ana CC CCCCNSC annual CSCCCCCC CCC CCCCCCCCC CCCCCCCCC CCSCCCC common CSCCN/SCCCCNCCCCCCCC NCCCCCCSCCCCCCCCCCCCCCCCCS SCC bluegrass, carpetweed carrot, wildchamberbitterchamomile, stinking chickweed, CCCCCCCS SCCCS/CCCCCCCCCCCCCCCCC mouseearchickweed, crabgrass C hairycrabweed, cudweed Cdayflower, spreading N C N C C C C N/S C C C S C N C S/C C S/C C C S S S C C C N S C N N C C S/C C N C C C C S/C N S

Preemergence Herbicides for Use in Ornamentals Table 3. Weeds, listed alphabetically by common name, and their susceptibilities to preemergence herbicides labeled for use on ornamental crops (N=no/poor control, S=suppression, C=good control). 5 9 AS ® ® 6 4 7 2 ® 1 ® 8 ® G/Surflan ® ® ® ® 3 ® ®

® ® ® ® ® ® Weed common name(s) bensulide Weedfree 75™ Weedfree XL Devrinol dichlobenil Dimension Eptam Gallery™ Image Kerb Lasso OH2 oxyfluorfen oxyflourfen + oryzalin pendimethalin Pennant Magnum Predict PrePair prodiamine RegalStar Ronstar Rout simazine Showcase Surflan BroadStar™\SureGuard™ Dacthal Treflan™ trifluralin + isoxaben kyllinga, green C C C C S C/S S C C C C C C lambsquarters10 CCCCC CC CS C CS SCCCCCCCCCCCC liverwort, common S N N N S N N C C S N mayweed C C C C C C medic. barrel C medic, black C C C S/C S S C C moss10 C C mulberry weed C C C S C C S C C N S mustard10 NSCC C CN C N CCCCS CCS nightshade, black N C S N C C C C C C N C C C S S C C S nutsedge, purple N C S/C S nutsedge, yellow N N S C CNS/CNS NN NC S NNNN NNN pepperweed10 CC C C CCCC S CCC CCC phyllanthus, long-stalked C N/S S/C N S/C C S/C S S C S/C pigweeds10 CC SCCCCCC CCCCCCCCCCCCCCCCCCC poinsettia, wild –11/C C purslane, common S CCCCCCC CCCCCCSCCCCCCCCCCCCC pusley, Florida C C N C C S C C C S C C S C C S C C ragweed, common N S N S/C C C C S S N S S C S C C C S N C S sedge, annual N S C C C sedge, globe C shepherdspurseCCSCCCCCCS/CCCCCCCCCCC CCC Spanish needles C N C S/C Preemergence Herbicides for Use in Ornamentals Table 3. Weeds, listed alphabetically by common name, and their susceptibilities to preemergence herbicides labeled for use on ornamental crops (N=no/poor control, S=suppression, C=good control). 5 9 AS ® ® 6 4 7 2 ® 1 ® 8 ® G/Surflan ® ® ® ® 3 ® ®

® ® ® ® ® ® Weed common name(s) bensulide Weedfree 75™ Weedfree XL Devrinol dichlobenil Dimension Eptam Gallery™ Image Kerb Lasso OH2 oxyfluorfen oxyflourfen + oryzalin pendimethalin Pennant Magnum Predict PrePair prodiamine RegalStar Ronstar Rout simazine Showcase Surflan BroadStar™\SureGuard™ Dacthal Treflan™ trifluralin + isoxaben sowthistle SCC C CCCC SCNCCCSCS CCS spurge, garden N C C N C C12 CCC spurge, hairy C spurge, prostrate C SNCC C CCCCSCCCS SCSCC CCS/C spurge, spotted C SNCC S/C CCCC S C CSCSCS C S ticktrefoil, Dixie CS vetch, common SSSC woodsorrel, yellow C NCC CC CCCCN/SNCCCCCNCC CCC 1 Bensumec™, Pre-San® 2 Barrier®, Casoron® — dichlobenil is highly volatile and, therefore, has the potential to be phytotoxic. Use with caution, avoid situations where gaseous concentrations can build up, apply when temperatures are low (volatility increases with increasing temperature), and incorporate immediately after application. 3 Lasso is not labeled for use in certain locations; for example, Florida and Nassau and Suffolk counties in New York. Before using Lasso, check to make sure it is registered for use in your area. 4 Goal®, Galigan®, OxiFlo, Weedfree 63™ 5 O-O Herbicide™, Lasar™ 6 Corral™, Hurdle®, Pendulum®, Pre-M® 7 Barricade®, Cavalcade™, ProClipse™, ProdiaGuard, RegalKade® 8 Princep®, Simazine, Sim-Trol® 9 Preen®, Snapshot™ TG 10 Check product labels for genera and/or species. 11 – = weed not on the label of this formulation. 12 Not all formulations of this active ingredient are labeled to control this weed(s).

Preemergence Herbicides for Use in Ornamentals

® 11 11 11

Y Y Y

Weedfree 75™ Weedfree

trifluralin + isoxaben + trifluralin

9 11 11

Y Y Treflan™

11 11 11

YY Y

AS G/Surflan Surflan

® ®

Y/Y Y Y Y Y/Y Y

simazine

, species or hybrid). , species or Showcase

Rout

® 11

Ronstar

YYY/YY Y

RegalStar

YY Y Y

prodiamine

7 11

PrePair

Predict

Pennant Magnum Pennant

YY YYY

pendimethalin

6 11 11

N = do not use product on indicated genus N = do not use product oxadiazon + oxyfluorfen

oxyfluorfen

4 11

OH2

YYY

Lasso

3 ®

Kerb

YYY

Image

® Gallery™

Y Y YYYYY YYY

Eptam

Dimension ® 11

Y YYYYYY YYY/YYY e herbicides (Y = crop is on product label,

dichlobenil

Devrinol

Dacthal

YY Y YN Y YYY Y YY Y Y/YYY YY YYYYY YYY YYYY BroadStar™/SureGuard™ 10

Y/–Y/– YYY/– YY/– YYY Y YYY/YYY Y YYY Y Y Y/Y Y Y

bensulide 1 YY/– Podocarpus gladwynensis Ornamentals tolerant of some preemergenc ) × spp. Y/– Y spp. spp. –/Y Y Y Y Y Scientific name Scientific Acacia Aesculus pavia Afrocarpus gracilior (synonym gracilior Bauhinia galpinii Table 4. TREES AND SHRUBS Abelia × grandiflora Acalypha wilkesiana Aucuba japonica Berberis Berberis julianae Berberis thunbergii Allamanda cathartica Araucaria heterophylla Astilbe Acca sellowiana Acer ginnala Acer palmatum Acer pensylvanicum Acer rubrum Acer saccharinum Acer saccharum Acer

Preemergence Herbicides for Use in Ornamentals Table 4. Ornamentals tolerant of some preemergence herbicides (Y = crop is on product label, N = do not use product on indicated genus, species or hybrid). 5 9 AS ® ® 6 4 7 2 ® 1 ® 8 ® G/Surflan ® ® ® ® 3 ® ®

® ® ® ® ® ® Scientific name Weedfree 75™ XL BroadStar™/SureGuard™ Dacthal Devrinol dichlobenil Dimension Eptam Gallery™ Image Kerb Lasso OH2 oxyfluorfen oxyfluorfen + oxadiazon pendimethalin Pennant Magnum Predict PrePair prodiamine RegalStar Ronstar Rout Showcase simazine Surflan Treflan™ trifluralin + isoxaben bensulide Berberis spp. Y/– Y Y11 YY11 YYYY11 YY11 YYYY11 Y11 Betula nigra YYYY Y Y YYYYY Y Y/YYY Y Betula spp. Y/Y Bougainvillea spp. Y Y11 YYYY11 YY Y/Y11 Y11 Y11 Y Buddleja davidii Y Buddleja spp. Y/– Buxus microphylla YYY11 YYYYY Y/YYY Y Buxus spp. Y Y/– Y Y Y Y11 Y11 YYYYY11 Y11 Y11 Y11 YY/Y11 Y11 Y11 Y11 Callistemon citrinus YYY YYY YY11 YY/YYYY Callistemon viminalis YYYYYYYYY Callistemon spp. Y/– Camellia japonica Y11 Y Y YYYY YY Camellia sasanqua YYYY Camellia spp. Y/– Y Y Y YYYY Carissa macrocarpa Y YYYY (synonym C. grandiflora) Carya spp. Y11/Y Y –/Y Caryota spp. Y Castanea spp. Y/Y Y Y Y11 Cercis canadensis Y/YY Y Y YYY Y YY Y/YYY Y Chamaecyparis lawsoniana Y/Y Y Chamaecyparis obtusa YY YYY/YYY Chamaecyparis pisifera YY Y YYYY/YYYY Chamaecyparis spp. Y/– Y Y Y Y Y Y11

® ® ® ® ® ® Scientific name Weedfree 75™ XL BroadStar™/SureGuard™ Dacthal Devrinol dichlobenil Dimension Eptam Gallery™ Image Kerb Lasso OH2 oxyfluorfen oxyfluorfen + oxadiazon pendimethalin Pennant Magnum Predict PrePair prodiamine RegalStar Ronstar Rout Showcase simazine Surflan Treflan™ trifluralin + isoxaben bensulide Chamaedorea cataractarum Y Chamaedorea elegans YYYYYY/YYYY Chamaedorea erumpens Y Chamaedorea spp. Y/– Chamaerops humilis Y Chrysalidocarpus lutescens Y Y/Y Y Y Y Citrus spp. Y/Y Y YYYY Y11 –/Y Cleyera japonica N/– Y Y Y Y Y/Y Y Y Y Codiaeum variegatum YY Cornus florida Y/Y11 YYYY Y YYYYYYYYYYYYYYYY/YYY Y Cornus kousa YYY YYY YYYYY Y YY/YY Y Cornus stolonifera YYYY YYY Y YYYY Y YYY/YY Y Cotoneaster apiculatus YY Y YY/YYYY Cotoneaster spp. Y/– Y Y Y Y11 YYY YYY Y11 Y11 YYY11 YYY/Y11 Y11 Y11 Y11 × Cupressocyparis leylandii YYYY Y Y Y Cupressus arizonica YYY/YYYY Cupressus glabra (see C. arizonica) Cupressus sempervirens Y/– Y Y Y Y Y Y/Y Y Cupressus spp. Y11 YYY11 Y11 YY YYY Y/Y11 Y11 Y11 Cycas revoluta YY YY Deutzia spp. N/– Y Y Y11 Y11 Y11 Y/Y11 YY11 Y11 Elaeagnus angustifolia YY YY YYY/YYYY Elaeagnus pungens YY Y11 Y Y Y11 YYY

® ® ® ® ® ® Scientific name Weedfree 75™ XL BroadStar™/SureGuard™ Dacthal Devrinol dichlobenil Dimension Eptam Gallery™ Image Kerb Lasso OH2 oxyfluorfen oxyfluorfen + oxadiazon pendimethalin Pennant Magnum Predict PrePair prodiamine RegalStar Ronstar Rout Showcase simazine Surflan Treflan™ trifluralin + isoxaben bensulide Elaeagnus spp. Y/– Eriobotrya japonica Y Escallonia spp. Y Eucalyptus camaldulensis Y/– Y/Y Eucalyptus cinerea Y/– Y YY/YY Y Y Eucalyptus citriodora Y Eucalyptus spp. –/Y Y Y11 Y11 YYYY/Y11 Y11 Y11 Y11 Euonymus fortunei Y11 Y11 YYYY11 YY11 YY/Y11 Y11 Y11 Y11 Euonymus japonica Y11 YYYYN11 YY/Y11 Y11 Y11 Y11 Euonymous kiautshovicus YYYY11 YY/YYYY Euonymous spp. Y11/–YYY Y11 Y11 Y11 Y11 YY11 YY/Y11 Y11 Y11 Y11 × Fatshedera lizei Y/Y Y Fatsia japonica Y –/Y Y Ficus benjamina Y/– Y Y Y Y/Y Y Y Ficus lyrata Y Ficus spp. Y Y Y11 Forsythia × intermedia Y Y Y YYYY11 YY/YY Y Forsythia suspensa Y/– Forsythia spp. Y Y YYYYYY11 YY11 Fraxinus spp. Y/Y YYYY Y11 YY11 YY Y Y11 Y/Y Y11 Y11 Y Gardenia jasminoides Y YY YY YYYY Y/YYY Y Gardenia spp. Y/– Y Y YYYY Ginko biloba Y/YYYYYYY/YYYY Hibiscus rosa-sinensis YYY YYYYY11 YY/YYYY

® ® ® ® ® ® Scientific name Weedfree 75™ XL BroadStar™/SureGuard™ Dacthal Devrinol dichlobenil Dimension Eptam Gallery™ Image Kerb Lasso OH2 oxyfluorfen oxyfluorfen + oxadiazon pendimethalin Pennant Magnum Predict PrePair prodiamine RegalStar Ronstar Rout Showcase simazine Surflan Treflan™ trifluralin + isoxaben bensulide Hibiscus syriacus YY11 YYYY11 YY11 Y/Y Y Y Y Hydrangea macrophylla Y11 Y Hydrangea spp. N/– Y N Y Y Y N11 N Ilex attenuata ‘Savannah’ Y Y Y11 YY YY Y Ilex cornuta YY Y11 Y11 YY11 YY11 YYY/Y11 Y11 Y11 Ilex crenata N11/– N Y Y11 Y11 YY11 YY11 YYY/Y11 Y11 Y11 Ilex glabra YY11 YY/Y11 Y11 Ilex opaca YY11 YY Ilex vomitoria NY Y11 Y11 Y Y YYYY/Y11 Y11 Y11 Ilex × ‘Nellie Stevens’ Y Y Y Y Y Y Ilex spp. Y Y/– Y Y Y11 Y11 Y11 YYY Y11 YYY11 Y11 YYY/Y11 YY11 Y11 Illicium anisatum YY Y Illicium floridanum Y/– Y Y Y Y Illicium parviflorum YY Itea ilicifolia Y11/– Y YY Ixora coccinea YY YY Juniperus chinensis –/Y Y11 Y11 Y11 YY YY11 YY/YY11 Juniperus conferta Y11 Y11 YY11 YY/YY11 Juniperus horizontalis –/Y Y11 Y11 Y11 YYY11 Y11 YY/YY11 Juniperus procumbens Y11 YYY/YY11 Juniperus sabina Y11 Y11 YY11 YY/YY11 Juniperus silicicola Juniperus squamata Y11 Y11 Y11 YY/YY11 Juniperus virginiana Y YYY Y YYYYYYY Y YY Y Y/YYY Y

® ® ® ® ® ® Scientific name Weedfree 75™ XL BroadStar™/SureGuard™ Dacthal Devrinol dichlobenil Dimension Eptam Gallery™ Image Kerb Lasso OH2 oxyfluorfen oxyfluorfen + oxadiazon pendimethalin Pennant Magnum Predict PrePair prodiamine RegalStar Ronstar Rout Showcase simazine Surflan Treflan™ trifluralin + isoxaben bensulide Juniperus spp. Y Y/– Y Y Y Y11 Y11 YYYY11 YYYY11 YY11 YY11 Y11 Y11 Y/Y11 YY11 Y Lagerstroemia indica N11/Y Y Y11 YY Y YYYY11 YY11 Y/Y Y Y Lagerstroemia spp. Y11/– Leptospermum scoparium Y Leucophyllum frutescens Y Leucothoe axillaries YYY YYYYYY/YYYY Leucothoe fontanesiana YYY Y YY Y Y YY/YYY Y Ligustrum japonicum YY Y Y YYY/YYY Ligustrum lucidum Y YYYYYYYYYYYYYYY/YYYY L. sinense ‘Variegated’ YYY Ligustrum × vicaryi YYYY/YYY Ligustrum spp. Y N/– Y Y Y Y11 NYYYY11 YY11 YY11 Y/Y11 YY11 Y11 Liquidambar styraciflua Y/Y Y Y Y Y Y Y Y/Y Y Y Y Liriodendron tulipifera Y Y Y YYY Y Livistona chinensis Y Y/Y Y Y Y Loropetalum chinensis Y11 Y11 Y Magnolia grandiflora Y/–Y Y Y Y Y YYYYYYYY Y Y/YYY Y Magnolia × soulangiana Y Y Y Y YYY YYY Magnolia spp. Y Y Y Y11 YYYY11 Y YYY Mahonia spp. Y/– Y11 Y11 YY11 Y11 Y11 Y11 YY/Y11 Y11 YY11 Morus alba Y/– Y Y/Y Y Y Y Murraya paniculata YY Y Y Musa aluminata Y YY Myrica cerifera YYY YYY YY

® ® ® ® ® ® Scientific name Weedfree 75™ XL BroadStar™/SureGuard™ Dacthal Devrinol dichlobenil Dimension Eptam Gallery™ Image Kerb Lasso OH2 oxyfluorfen oxyfluorfen + oxadiazon pendimethalin Pennant Magnum Predict PrePair prodiamine RegalStar Ronstar Rout Showcase simazine Surflan Treflan™ trifluralin + isoxaben bensulide Myrtus communis YYY/YY Nandina domestica N/– YYY Y YY YY YY Y/YYY Y Nerium oleander YYY11 Y YYY YYYYYY Y/YY11 Y11 Y11 Nerium spp. Y/– Nyssa sylvatica YY Osmanthus fragrans Y/–Y Y YYY YY Osmanthus × fortunei YY YYYYY Osmanthus heterophyllus YY YYYYYYY/Y Y Phoenix roebelinii Y Y/Y Y Y Y Photinia × fraseri YYY YY Y YYY YYYYYY Y/YYY Y Photinia spp. Y/– Pinus banksiana Y/Y Pinus bungeana Y/– Pinus canariensis YY Y YY/YYY Pinus clausa Y/Y Pinus contorta Y/Y Y Pinus echinata Y/Y Pinus elliotii Y/Y Y Y Y Y Y Pinus mugo Y/– Y Pinus palustrus Y/Y Y Y Y Y Pinus ponderosa Y/Y Pinus strobus Y/Y YY Pinus sylvestris Y/Y YY Pinus taeda Y/Y Y Y Y Y Y Y Y

® ® ® ® ® ® Scientific name Weedfree 75™ XL BroadStar™/SureGuard™ Dacthal Devrinol dichlobenil Dimension Eptam Gallery™ Image Kerb Lasso OH2 oxyfluorfen oxyfluorfen + oxadiazon pendimethalin Pennant Magnum Predict PrePair prodiamine RegalStar Ronstar Rout Showcase simazine Surflan Treflan™ trifluralin + isoxaben bensulide Pinus virginiana Y/Y Y Pinus spp. Y Y Y Y11 Y11 YYY11 YY11 YYY11 YYY11 Y11 Y/Y11 Y11 Y11 Y Pittosporum tobira YYY Y Y YYYYY11 YY/Y11 Y11 Y11 Y Pittosporum spp. Y/– Y Y Y Y Y11 Y11 Y11 Y/Y Platanus occidentalis Y/Y11 Y YYY YYY Y/YYYY Platanus racemosa Y/Y Platycladus orientalis Y/YY YY Y Y YYY Y Y YYYYYY/YYY Y (synonym Thuja orientalis) Paeonia cultivars YY Plumbago auriculata Y Y/Y Y Y Y Podocarpus gracilior (see Afrocarpus gracilior) Podocarpus macrophyllus YY Y/YYYY Podocarpus spp. Y/– Y Y Y Y Y Y Y Y/Y Y Y Y Populus spp. Y/Y Prunus caroliniana Y Y/Y Y Y Prunus laurocerasus Y YYY Y/Y Y Prunus spp. Y/Y Y Y11 Y11 YYYY11 YY11 Y11 Y11 YY/Y11 Y11 Y11 Y11 Psidium littorale var. lucidum Y (synonym P. cattleianum) Pyracantha coccinea Y YYY Y/Y Y Pyracantha koidzumii Y11 YY/Y Pyracantha. crenatoserrata YYYY/YY (synonym P. fortuneana)

® ® ® ® ® ® Scientific name Weedfree 75™ XL BroadStar™/SureGuard™ Dacthal Devrinol dichlobenil Dimension Eptam Gallery™ Image Kerb Lasso OH2 oxyfluorfen oxyfluorfen + oxadiazon pendimethalin Pennant Magnum Predict PrePair prodiamine RegalStar Ronstar Rout Showcase simazine Surflan Treflan™ trifluralin + isoxaben bensulide Pyracantha spp. Y Y/– Y Y Y11 Y11 YYYYYY11 Y11 Y Pyrus calleryana ‘Bradford’ Y Y Y Y Pyrus spp. Y11/Y Quercus ilicifolia Y/– Y Quercus laurifolia Y Quercus nigra YY Quercus palustris Y/–YYY YYY Y–/YYY Quercus phellos Y/– YY YYY Y–/YYY Quercus prinus Y YYYY11 YYYY11 Y11 Y Quercus rubra Y/–YYYYYYY–/YYY Quercus shumardii Y Quercus virginiana Y/– Y Y Y Y Y Y Quercus spp. –/Y Y Y YYYYYY Y/YY11 Y11 Rhaphiolepis indica Y/– Y Y11 Y Y YYY YYY Y11 YY/Y11 YY11 Y11 Rhaphiolepis umbellata Y YYYYYY11 Rhapis excelsa Y Rhododendron spp. Y Y/– Y Y Y11 Y11 YY11 Y11 YY11 Y11 YY Y11 Y11 Y11 Y11 Y11 Y11 YY/YYY11 Y Rosa spp. Y/– Y Y Y Y11 YY YY11 YY/YYY11 Y Rosmarinus officinalis YY Y Y/YYYY Salix babylonica YY Y/YYY Salix spp. Y Y Y Y Y Spiraea cantoniensis N/–YYY YYYY Spiraea japonica N/–YYYYYYYYYY YY YY Spiraea × vanhouttei N/–YYYYYYYYY Y/YYYY

® ® ® ® ® ® Scientific name Weedfree 75™ XL BroadStar™/SureGuard™ Dacthal Devrinol dichlobenil Dimension Eptam Gallery™ Image Kerb Lasso OH2 oxyfluorfen oxyfluorfen + oxadiazon pendimethalin Pennant Magnum Predict PrePair prodiamine RegalStar Ronstar Rout Showcase simazine Surflan Treflan™ trifluralin + isoxaben bensulide Swietenia mahogani YY Y/YYY Syagrus romanzoffianum YY Y/Y Y Y Tabebuia caraiba Y Y/Y Y Y Y Taxodium distichum YY Y YYYY Y Y Ternstroemia gymnanthera Y Y YY YY Thuja occidentalis Y/YY YY Y Y YYYYY Y YYYY/Y11 YY Y11 Thuja orientalis (see Platycladus orientalis) Tibouchina urvilleana Y Trqchycarpus fortunei Y Ulmus parvifolia Y/– Y Y Y Ulmus spp. Y Y Y11 Y Veitchia merrillii YYY/YYY Viburnum japonicum YYYY/YYY Viburnum suspensum YYY11 Y/Y Y Viburnum spp. Y/– Y Y11 YY11 NYYYYY11 YY11 Y11 Y11 Y/Y11 Y11 Y11 Y11 Washingtonia robusta YYY Y Y/YYYY Weigela florida Y/–YY Y YYYYYYYYY/YYYY Xylosma congestum Y Y Y Y Y YY Y YYYY Y/YYY Y GROUNDCOVERS AND VINING PLANTS Aquilegia spp. & cultivars Y Y Y11 Y11 YY Aspidistra elatior Y Calluna vulgaris YY YYYY Cortaderia selloana. YYYYYYYY/YYYY

® ® ® ® ® ® Scientific name Weedfree 75™ XL BroadStar™/SureGuard™ Dacthal Devrinol dichlobenil Dimension Eptam Gallery™ Image Kerb Lasso OH2 oxyfluorfen oxyfluorfen + oxadiazon pendimethalin Pennant Magnum Predict PrePair prodiamine RegalStar Ronstar Rout Showcase simazine Surflan Treflan™ trifluralin + isoxaben bensulide Dietes iridioides (synonym Y –/Y Dietes vegeta) Gelsemium sempervirens YY Y YY YY Hedera canariensis YY Y YY Y/YYYY Hedera helix YY/–YYYY Y YY YY Y Y/YYY Y Hemerocallis spp. Y Y Y Y11 Y/Y Y Y Y Hypericum spp. Y Y Y Y Y Y Y Y Y Y Y/Y Y Y Y Jasminum spp. Y11 YYY Y11 Jasminum mesnyi YYY Jasminum nitidum YYYY Jasminum nudiflorum YY Lantana camara YY Y YY Lantana sellowiana or L. YY Y Y YY YY YY montevidensis Lantana spp. Y/– Liriope muscari YYY11 YYYY11 Y11 Y/Y11 YY Y11 Liriope spicata YYY YYY YY Lonicera japonica YY Y/Y Y Lonicera spp. Y/– Y Y Y Y Y Y Y11 YY11 Y11 Y/Y11 Y11 Y11 Y11 Ophiopogon japonicus YYY YYY Y/YYYY Pachysandra terminalis YY/–YYYY YY Y YYY YY –/YYY Y Pennisetum spp. Y11 Y11 Y11 Y11 –/Y11 Y11 Y11 Rumohra adiantiformis YY Y Ruscus hypophyllum Y

® ® ® ® ® ® Scientific name Weedfree 75™ XL BroadStar™/SureGuard™ Dacthal Devrinol dichlobenil Dimension Eptam Gallery™ Image Kerb Lasso OH2 oxyfluorfen oxyfluorfen + oxadiazon pendimethalin Pennant Magnum Predict PrePair prodiamine RegalStar Ronstar Rout Showcase simazine Surflan Treflan™ trifluralin + isoxaben bensulide Trachelospermum YY YYYY/YY jasminoides Trachelospermum asiaticum YYYYY11 YY11 YY Tulbaghia violacea Y –/Y Y Wedelia trilobata Y Wisteria sinensis YY Y ANNUALS AND PERENNIALS Achillea spp. Y Y Y Y Y Y/Y Y Y11 Y Agapanthus africanus YY11 Y Y YY Y Y/YYY Y Agapanthus orientalis Y Ageratum spp. Y Y Y Y Y11 Ajuga reptans YYYN YYYY Y/YNY Allamanda cathartica Y Allium spp. YY11 Alstroemeria cultivars Alyssum spp. Y Y Y Y Y Amaranthus cultivars N/– N Ammi majus Anemone coronaria YY11 Anthurium andraeanum Y Antirrhinum majus YY YY Y/YYY Aquilegia spp. & cultivars Y Y Y11 Y11 YY Ascelepias tuberosa YY Asparagus spp. Y Y11 Y–/YY11 Y11

® ® ® ® ® ® Scientific name Weedfree 75™ XL BroadStar™/SureGuard™ Dacthal Devrinol dichlobenil Dimension Eptam Gallery™ Image Kerb Lasso OH2 oxyfluorfen oxyfluorfen + oxadiazon pendimethalin Pennant Magnum Predict PrePair prodiamine RegalStar Ronstar Rout Showcase simazine Surflan Treflan™ trifluralin + isoxaben bensulide Asparagus virgatus YY Y Y Aspidistra elatior Y Aster spp. Y Y Y Y11 Y11 Y Y –/Y Y Y11 Astilbe cultivars Y/Y11 Y11 Y11 Y11 Athyrium nipponicum –/Y Y Banksia menziesii Y Begonia spp. Y Y Y N/N Y N Bouvardia hybrids Bracteantha bracteata (see Helichrysum bracteatum) Buddleia davidii Y/– YY bulbs, ornamental Y Y11 Y11 Y11 Y/Y Y11 Y11 Y Caladium bicolor YY/YY Calendula officinalis Y Y Campanula spp. Y Y Y Y11 Y11 Y/Y Y Y11 Carthamus tinctorius Caryopteris incana Catharanthus roseus YY Cattleya cultivars Celosia cristata YY Chrysanthemum spp. Y Y Y Y11 YY11 YY/Y11 YY Y11 Chrysanthemum superbum YY Y YYY YYY Cirsium japonicum Coleus spp. Y Y11 N/N N

® ® ® ® ® ® Scientific name Weedfree 75™ XL BroadStar™/SureGuard™ Dacthal Devrinol dichlobenil Dimension Eptam Gallery™ Image Kerb Lasso OH2 oxyfluorfen oxyfluorfen + oxadiazon pendimethalin Pennant Magnum Predict PrePair prodiamine RegalStar Ronstar Rout Showcase simazine Surflan Treflan™ trifluralin + isoxaben bensulide Coreopsis spp. Y Y Y Y11 YYYY/Y11 YY11 Y11 Cosmos spp. Y Y Costus spp. Cuphea hyssopifolia YY –/Y Y Cyathea australis Cyclamen persicum Cymbidium cultivars Dahlia spp. Y Y Y Y Y Y Delphinium spp. Y Y Y Y Dendranthema × grandiflorum (synonym YY Y YY Y Y/Y11 YY Y Chrysanthemum moriforium) Dendrobium cultivars Dianthus barbatus NY11 YY Y11 Y/Y11 YY Dianthus caryophyllus N 11 Y11 YY Dianthus plumarius NYY Y11 Y11 Y Digitalis spp. Y Y Y11 Dracaena spp. Y11 Echinacea purpurea NYYY/YYYY Erigeron cultivars Eustoma grandiflorum Freesia spp. Y Gaillardia spp. Y Y Y Y Y Y11 Gerbera jamesonii

® ® ® ® ® ® Scientific name Weedfree 75™ XL BroadStar™/SureGuard™ Dacthal Devrinol dichlobenil Dimension Eptam Gallery™ Image Kerb Lasso OH2 oxyfluorfen oxyfluorfen + oxadiazon pendimethalin Pennant Magnum Predict PrePair prodiamine RegalStar Ronstar Rout Showcase simazine Surflan Treflan™ trifluralin + isoxaben bensulide Gladiolus spp. Y11 YY YY Y Y Y/Y11 YY11 Gloriosa superba Gomphrena cultivars Y Gypsophila paniculata YY YY11 YY Y/YYN Y Helianthus spp. Y Y Helichrysum bracteatum Y Heliconia species Y Hemerocallis spp. Y Y Y Y Y/Y Y Y Y Heuchera sanguinea YY Y Y Y Hippeastrum cultivars Hosta spp. Y Y Y11 YY11 Y11 Y/Y Y11 Y11 Y Hyacinthus spp. Y Iberis sempervirens YY Y11 NYYN Impatiens walleriana YYY11 Y/Y Y Y Iris spp. Y Y Y11 YY Y Y/YY Y Kalanchoe cultivars Kniphofia uvaria Y Lathyrus odoratus YY Liatris spicata YY/YYY Lillium spp. Y Y Y Y Limonium perezii YYYYY Lobelia spp. Y11 Y Lunaria annua Lupinus spp. Y Y Y Y

® ® ® ® ® ® Scientific name Weedfree 75™ XL BroadStar™/SureGuard™ Dacthal Devrinol dichlobenil Dimension Eptam Gallery™ Image Kerb Lasso OH2 oxyfluorfen oxyfluorfen + oxadiazon pendimethalin Pennant Magnum Predict PrePair prodiamine RegalStar Ronstar Rout Showcase simazine Surflan Treflan™ trifluralin + isoxaben bensulide Lysimachia spp. Y Y Mirabilis jalapa Y Y Monarda didyma Y Narcissus spp. Y Y Y Y Y Y Y Y Nigella damascena Paeonia cultivars Y11 YY Pachysandra terminalis Y Y Y Y Y YYY Y –/YYY Pelargonium hortorum YY Y Y11 YY/YY Pentas lanceolata Y Petunia × hybrida YYYY YY Y/YYYY Phalaenopsis cultivars Philodendron spp. Y Y Phlox spp. N Y11 YY YN12 Platycodon grandiflorus Portulaca grandiflora YY Y Y/YYY Primula spp. Y Protea spp. & cultivars YY11 Y/Y11 Ranunculus asiaticus Y Y Rosmarinus officinalis YY Y/Y Y Y Y Rudbeckia fulgida Y11 YY11 Y11 –/Y Y11 Y11 Y Rudbeckia hirta YY Y Y/YYYY Saintpaulia ionantha Y Salvia farinacea YY11 YYY Salvia spp. Y YY/YYY

® ® ® ® ® ® Scientific name Weedfree 75™ XL BroadStar™/SureGuard™ Dacthal Devrinol dichlobenil Dimension Eptam Gallery™ Image Kerb Lasso OH2 oxyfluorfen oxyfluorfen + oxadiazon pendimethalin Pennant Magnum Predict PrePair prodiamine RegalStar Ronstar Rout Showcase simazine Surflan Treflan™ trifluralin + isoxaben bensulide 1 Bensumec™, Pre-San® 2 Barrier®, Casoron® — dichlobenil is highly volatile and, therefore, has the potential to be phytotoxic. Use with caution, avoid situations where gaseous concentrations can build up, apply when temperatures are low (volatility increases with increasing temperature), and incorporate immediately after application. 3 Lasso is not labeled for use in certain locations; for example, Florida and Nassau and Suffolk counties in New York. Before using Lasso, check to make sure it is registered for use in your area. 4 Goal®, Galigan®, OxiFlo, Weedfree 63™ 5 O-O Herbicide™, Lasar™ 6 Corral™, Hurdle®, Pendulum®, Pre-M® 7 Barricade®, Cavalcade™, ProClipse™, ProdiaGuard, RegalKade® 8 Princep®, Simazine, Sim-Trol® 9 Preen®, Snapshot™ TG 10 – = crop not on the label of this formulation. 11 Check product labels for species and/or varieties. 12 Do not use on Phlox drummondii.

Preemergence Herbicides for Use in Ornamentals R. hirta , spp. cutlivars cultivars spp. spp gladwynensis spp. spp. × spp. spp spp. Zantedeschia Fraxinus Asparagus Aster Astilbe Aucuba japonica Cyathea australis Rhododendron Gypsophila paniculata Gomphrena Taxodium distichum Platycodon grandiflorus Nandina domestica Chamaedorea erumpens Rhapis excelsa Musa aluminata Michelia figo Berberis Berberis Berberis thunbergii Monarda didyma Begonia Campanula Monarda didyma Betula nigra Strelitzia reginae Ammi majus Nyssa sylvatica Rudbeckia fulgida aucuba, gold-dust plant bellflower bergamot aster Australian tree fern azalea species bachelor’s button balloon flower bamboo, heavenly bamboo palm bamboo palm banana banana shrub barberry bee balm begonia birch, river bird-of-paradise bishop’s flower black gum Susan black-eyed Table 5. Common name reference list for ornamental crops. Common namearum lily ash asparagus “fern” astilbe Scientific name baby’s breath bald cypress barberry barberry, Japanese Preemergence Herbicides for Use in Ornamentals Dietes (synonym (synonym ) cultivars spp. spp. spp. spp. ) Hippeastrum Thuja occidentalis Cornus stolonifera Ilex opaca Platanus occidentalis Jasminum nitidum Illicium anisatum Illicium floridanum Illicium floridanum Illicium parviflorum Anthurium andraeanum Fatsia japonica Thuja occidentalis Platycladus orientalis Thuja orientalis Chrysalidocarpus lutescens Cupressus arizonica Ajuga reptans Hedera canariensis Allamanda cathartica Allium Alyssum vegeta Saintpaulia ionantha Agapanthus africanus Ageratum Yucca filamentosa Dietes iridioides Abelia × grandiflora Acacia amaryllis American arborvitae American dogwood American holly American plane tree angelwing jasmine anise, Chinese anise, Florida anise, purple anise, star anthurium aralia, Japanese arborvitae, American arborvitae, Oriental areca palm Arizona cypress ajuga Algerian ivy allamanda allium alyssum African violet agapanthus ageratum Adam’s needle, yucca African iris Table 5. Common name reference list for ornamental crops. Common nameabelia, glossy Scientific name acacia Preemergence Herbicides for Use in Ornamentals Table 5. Common name reference list for ornamental crops. Table 5. Common name reference list for ornamental crops. Common name Scientific name Common name Scientific name blanket flower Gaillardia spp. cape jasmine or jessamine Gardenia augusta (synonym G. blazing star Liatris spicata jasminoides) blue lace flower Trachelium caeruleum carnation Dianthus caryophyllus blue Pacific juniper Juniperus conferta Carolina jessamine Gelsemium sempervirens blue star juniper Juniperus squamata cast iron plant Aspidistra elatior blue throatwort Trachelium caeruleum cedar, Eastern red Juniperus virginiana bluebeard Caryopteris incana cedar, Southern red Juniperus silicicola bottlebrush, lemon Callistemon citrinus chalcus Murraya paniculata bottlebrush, weeping Callistemon viminalis cherry Prunus spp. bougainvillea Bougainvillea spp. cherry laurel, American Prunus caroliniana boxwood Buxus spp. cherry laurel, English Prunus laurocerasus boxwood, littleleaf Buxus microphylla chestnut Castanea spp. Bradford pear Pyrus calleryana ‘Bradford’ chestnut oak Quercus prinus buckeye, red Aesculus pavia Chinese anise Illicium anisatum Buddleja davidii, (synonym Buddleia Chinese elm Ulmus parvifolia bush, butterfly davidii) Chinese fan palm Livistona chinensis bush lantana Lantana camara Chinese holly Ilex cornuta butcher’s broom Ruscus hypophyllum Chinese juniper Juniperus chinensis buttercup Ranunculus asiaticus Chinese privet, variegated Ligustrum sinense ‘Variegated’ Buddleja davidii, (synonym Buddleia Christmas palm Veitchia merrillii butterfly bush davidii) chrysanthemum Chrysanthemum spp. butterfly weed Asclepias tuberosa chrysanthemum Dendranthema × grandiflorum caladium Caladium bicolor citrus, ornamental Citrus spp. calla lily Zantedeschia cutlivars Cleyera japonica, see also cleyera camellia Camellia spp. Ternstroemia gymnanthera camellia, Japanese Camellia japonica Gloriosa rothschildiana, see G. superba climbing lily camellia, sasanqua Camellia sasanqua ‘Rothschildiana Canary Island pine Pinus canariensis coastal leucothoe Leucothoe axillaris candytuft, evergreen Iberis sempervirens cockscomb, cock’s comb Celosia cristata coleus Coleus spp. Preemergence Herbicides for Use in Ornamentals Preemergence Herbicides for Use in Ornamentals Table 5. Common name reference list for ornamental crops. Table 5. Common name reference list for ornamental crops. Common name Scientific name Common name Scientific name columbine Aquilegia cultivars delphinium Delphinium spp. coneflower Echinacea purpurea deutzia Deutzia spp. Confederate jasmine Trachelospermum jasminoides dianthus Dianthus plumarius copperleaf Acalypha wilkesiana dogwood, American Cornus stolonifera coral bells Heuchera sanguinea dogwood, flowering Cornus florida coreopsis Coreopsis spp. dogwood, kousa Cornus kousa cosmos Cosmos spp. dracaena Dracaena spp. cotoneaster Cotoneaster spp. drake elm Ulmus parvifolia cotoneaster, cranberry Cotoneaster apiculatus drooping leucothoe Leucothoe fontanesiana cottonwood, Eastern Populus deltoides dusty miller Senecio cineraria crape myrtle Lagerstroemia indica Eastern cottonwood Populus deltoides creeping juniper Juniperus horizontalis Eastern red cedar Juniperus virginiana croton Codiaeum variegatum Eastern white pine Pinus strobus cypress, Arizona Cupressus arizonica elaeagnus, thorny Elaeagnus pungens cypress, bald Taxodium distichum elm Ulmus spp. cypress, false Chamaecyparis spp. elm, Chinese Ulmus parvifolia cypress, Hinoki Chamaecyparis obtusa elm, drake Ulmus parvifolia cypress, Italian C. sempervirens English ivy Hedera helix cypress, Lawson’s Chamaecyparis lawsoniana escallonia Escallonia spp. cypress, Leyland × Cupressocyparis leylandii eucalyptus Eucalyptus spp. cypress, Sawara Chamaecyparis pisifera eucalyptus, silver dollar Eucalyptus cinerea cypress spp. Cupressus spp. euonymous Euonymous spp. daffodil bulbs, ornamental euonymous, creeping Euonymus fortunei daffodil Narcissus spp. euonymus, evergreen Euonymus japonica dahlia Dahlia spp. euonymus, spreading Euonymus kiautshovicus daisy, gloriosa Rudbeckia hirta European fan palm Chamaerops humilis daisy, shasta Chrysanthemum superbum false bird of Paradise Heliconia species date palm, pigmy Phoenix roebelinii false cypress Chamaecyparis spp. daylily Hemerocallis spp. false holly Osmanthus heterophyllus

Preemergence Herbicides for Use in Ornamentals Preemergence Herbicides for Use in Ornamentals Table 5. Common name reference list for ornamental crops. Table 5. Common name reference list for ornamental crops. Common name Scientific name Common name Scientific name grass, pampas Cortaderia selloana. impatiens Impatiens walleriana guava, pineapple Acca sellowiana Indian hawthorn Rhaphiolepis indica guava, strawberry Psidium littorale var. lucidum inkberry Ilex glabra gum, black Nyssa sylvatica iris Iris spp. gum, lemon scented Eucalyptus citriodora Dietes iridioides (synonym Dietes iris, African gum, sweet Liquidambar styraciflua vegeta) hawthorn, Indian Rhaphiolepis umbellata iris, bulbous bulbs, ornamental hawthorn, Indian Rhaphiolepis indica Italian cypress Cupressus sempervirens heather, Mexican Cuphea hyssopifolia ivy, Algerian Hedera canariensis heather, Scotch Calluna vulgaris ivy, English Hedera helix heavenly bamboo Nandina domestica ixora Ixora coccinea hibiscus Hibiscus rosa-sinensis Jack pine Pinus banksiana hickory Carya spp. Japanese aralia Fatsia japonica Hinoki cypress Chamaecyparis obtusa Japanese barberry Berberis thunbergii holly Ilex spp. Japanese camellia Camellia japonica holly, American Ilex opaca Japanese holly Ilex crenata holly, Chinese Ilex cornuta Japanese honeysuckle Lonicera japonica holly, false Osmanthus heterophyllus Japanese maple Acer palmatum holly, Japanese Ilex crenata Japanese painted fern Athyrium nipponicum holly, Nellie Stevens Ilex × ‘Nellie Stevens’ Japanese privet Ligustrum japonicum holly, Savannah Ilex attenuata ‘Savannah’ Japanese spiraea Spiraea japonica holly, yaupon Ilex vomitoria Japanese star jasmine Trachelospermum asiaticum honesty Lunaria annua Japanese thistle Cirsium japonicum honeysuckle Lonicera spp. Japanese viburnum Viburnum japonicum honeysuckle, Japanese Lonicera japonica jasmine Jasminum spp. hosta Hosta spp. jasmine, angelwing Jasminum nitidum hyacinth bulbs, ornamental jasmine, Confederate Trachelospermum jasminoides hyacinth Hyacinthus spp. jasmine, Japanese star Trachelospermum asiaticum hydrangea Hydrangea spp. jasmine, orange Murraya paniculata jasmine, pinwheel Jasminum nitidum Preemergence Herbicides for Use in Ornamentals Preemergence Herbicides for Use in Ornamentals Table 5. Common name reference list for ornamental crops. Table 5. Common name reference list for ornamental crops. Common name Scientific name Common name Scientific name jasmine, primrose Jasminum mesnyi liatris Liatris spicata jasmine, shining Jasminum nitidum ligustrum Ligustrum spp. jasmine, small-leaf Trachelospermum asiaticum lily Lillium spp. jasmine, star Trachelospermum jasminoides lily of the Incas Alstroemeria cultivars jasmine, winter Jasminum nudiflorum lily turf Liriope muscari jessamine, Carolina Gelsemium sempervirens lily turf, creeping Liriope spicata juniper Juniperus spp. liroipe Liriope muscari juniper, blue Pacific Juniperus conferta lisianthus Eustoma grandiflorum juniper, blue star Juniperus squamata littleleaf boxwood Buxus microphylla juniper, Chinese Juniperus chinensis live oak Quercus virginiana juniper, creeping Juniperus horizontalis lobelia Lobelia spp. juniper, Japanese garden Juniperus chinensis loblolly pine Pinus taeda juniper, nana-dwarf Juniperus procumbens lobster claw Heliconia species juniper, Parson’s, Juniperus squamata lodgepole pine Pinus contorta juniper, savin Juniperus sabina longleaf pine Pinus palustrus juniper, shore Juniperus conferta loquat Eriobotrya japonica kousa dogwood Cornus kousa love-in-a-mist Nigella damascena lady palm Rhapis excelsa love-lies-bleeding Amaranthus caudatus lantana, bush Lantana camara lupine Lupinus spp. lantana, trailing Lantana sellowiana magnolia Magnolia spp. laurel, American cherry Prunus caroliniana magnolia, saucer Magnolia × soulangiana laurel, English cherry Prunus laurocerasus magnolia, Southern Magnolia grandiflora laurel oak Quercus laurifolia mahogany Swietenia mahogani Lawson’s cypress Chamaecyparis lawsoniana mahonia Mahonia spp. leatherleaf fern Rumohra adiantiformis Manila palm Veitchia merrillii lemon bottlebrush Callistemon citrinus maple Acer spp. lemon scented gum Eucalyptus citriodora maple, flame Acer ginnala leucothoe, coastal Leucothoe axillaries maple, Japanese Acer palmatum leucothoe, drooping Leucothoe fontanesiana maple, red Acer rubrum Leyland cypress × Cupressocyparis leylandii maple, silver Acer saccharinum Preemergence Herbicides for Use in Ornamentals Preemergence Herbicides for Use in Ornamentals Table 5. Common name reference list for ornamental crops. Table 5. Common name reference list for ornamental crops. Common name Scientific name Common name Scientific name maple, sugar Acer saccharum oak-leaf hydrangea Hydrangea quercifolia marigold Tagetes spp. old-fashioned weigela Weigela florida Mexican fan palm Washingtonia robusta oleander Nerium oleander Mexican heather Cuphea hyssopifolia olive, Russian Elaeagnus angustifolia mondo grass Ophiopogon japonicus orange jasmine Murraya paniculata money plant Lunaria annua orchid tree Bauhinia galpinii moneywort Lysimachia nummularia Platycladus orientalis (synonym Oriental arborvitae moss rose Portulaca grandiflora Thuja orientalis) moth orchid Phalaenopsis cultivars osmanthus Osmanthus fragrans mulberry, white Morus alba osmanthus, Fortune’s Osmanthus × fortunei myrtle Myrtus communis pachysandra Pachysandra terminalis myrtle, crape Lagerstroemia indica painted fern, Japanese Athyrium nipponicum myrtle, wax Myrica cerifera palm, areca Chrysalidocarpus lutescens nana-dwarf juniper Juniperus procumbens palm, bamboo Rhapis excelsa nandina Nandina domestica palm, cat Chamaedorea cataractarum narcissus Narcissus spp. palm, Chinese fan Livistona chinensis Carissa macrocarpa (synonym C. palm, Christmas Veitchia merrillii natal plum grandiflora) palm, European fan Chamaerops humilis Nellie Stevens holly Ilex × ‘Nellie Stevens’ palm, fishtail Caryota spp. no-azami Cirsium japonicum palm, lady Rhapis excelsa Norfolk Island pine Araucaria heterophylla palm, Manila Veitchia merrillii oak Quercus spp. palm, Mexican fan Washingtonia robusta oak, chestnut Quercus prinus palm, parlor Chamaedorea elegans oak, laurel Quercus laurifolia palm, pigmy date Phoenix roebelinii oak, live Quercus virginiana palm, queen Syagrus romanzoffianum oak, pin Quercus palustris palm, sago Cycas revoluta oak, red Quercus rubra palm, windmill Trachycarpus fortunei oak, Shumard Quercus shumardii palm,Washington fan Washingtonia robusta oak, water Quercus nigra pampas grass Cortaderia selloana. oak, willow Quercus phellos pansy Viola spp. Preemergence Herbicides for Use in Ornamentals Preemergence Herbicides for Use in Ornamentals Table 5. Common name reference list for ornamental crops. Table 5. Common name reference list for ornamental crops. Common name Scientific name Common name Scientific name parlor palm Chamaedorea elegans pittosporum Pittosporum spp. Parson’s juniper Juniperus squamata pittosporum Pittosporum tobira pear, Bradford Pyrus calleryana ‘Bradford’ plane tree, American Platanus occidentalis pentas Pentas lanceolata Carissa macrocarpa (synonym C. plum, natal peony Paeonia cultivars grandiflora) periwinkle, common Vinca spp. plumbago Plumbago auriculata periwinkle, Madagascar Catharanthus roseus podocarpus Podocarpus macrophyllus Persian buttercup Ranunculus asiaticus podocarpus Podocarpus spp. Persian violet Cyclamen persicum podocarpus, weeping Podocarpus gracilior Peruvian lily Alstroemeria cultivars portulaca Portulaca grandiflora petunia Petunia × hybrida pot marigold Calendula officinalis philodendron Philodendron spp. prairie gentian Eustoma grandiflorum phlox Phlox spp. primrose Primula spp. photinia, Fraser’s Photinia × fraseri primrose jasmine Jasminum mesnyi pigmy date palm Phoenix roebelinii princes flower Tibouchina urvilleana pin oak Quercus palustris privet Ligustrum spp. pincushion flower Scabiosa cultivars privet, glossy Ligustrum lucidum pine Pinus spp privet, Japanese Ligustrum japonicum pine, Canary Island Pinus canariensis privet, variegated Chinese L. sinense ‘Variegated’ pine, Eastern white Pinus strobus privet, Vicaryi Ligustrum × vicaryi pine, Jack Pinus banksiana purple anise Illicium floridanum pine, loblolly Pinus taeda pyracantha Pyracantha spp. Pyracantha. crenatoserrata (synonym pine, lodgepole Pinus contorta pyracantha P. fortuneana) pine, longleaf Pinus palustrus queen palm Syagrus romanzoffianum pine, Norfolk Island Araucaria heterophylla Queen Anne’s lace Ammi majus pine, sand Pinus clausa red buckeye Aesculus pavia pine, slash Pinus elliotii red cedar, Eastern Juniperus virginiana pineapple guava Acca sellowiana red cedar, Southern Juniperus silicicola pinks Dianthus plumarius red maple Acer rubrum pinwheel jasmine Jasminum nitidum Preemergence Herbicides for Use in Ornamentals Preemergence Herbicides for Use in Ornamentals Table 5. Common name reference list for ornamental crops. Table 5. Common name reference list for ornamental crops. Common name Scientific name Common name Scientific name red oak Quercus rubra shrub, banana Michelia figo red-hot poker Kniphofia uvaria Shumard oak Quercus shumardii redbud Cercis canadensis Siberian squill Scilla siberica rhaphiolepis Rhaphiolepis umbellata silver dollar Lunaria annua river birch Betula nigra silver dollar tree Eucalyptus cinerea rose Rosa spp. silver maple Acer saccharinum rose, moss Portulaca grandiflora slash pine Pinus elliotii rose of China Hibiscus rosa-sinensis small-leaf jasmine Trachelospermum asiaticum rose of Sharon Hibiscus syriacus snapdragon Antirrhinum majus rosemary Rosmarinus officinalis society garlic Tulbaghia violacea ruscus Ruscus hypophyllum Southern magnolia Magnolia grandiflora Russian olive Elaeagnus angustifolia Southern red cedar Juniperus silicicola safflower Carthamus tinctorius spiderwort Tradescantia virginiana sage Salvia spp. spiraea, false Astilbe spp. sage, Texas Leucophyllum frutescens spiral flag Costus species sago palm Cycas revoluta spiraea Spiraea cantoniensis salvia Salvia farinacea spiraea, Japanese Spiraea japonica sandankwa viburnum Viburnum suspensum spiraea, Van Houtte Spiraea × vanhouttei sasanqua camellia Camellia sasanqua St. John’s wort Hypericum spp. saucer magnolia Magnolia × soulangiana star anise Illicium parviflorum Savannah holly Ilex attenuata ‘Savannah’ star jasmine Trachelospermum jasminoides savin juniper Juniperus sabina statice Limonium perezii Sawara cypress Chamaecyparis pisifera strawberry guava Psidium littorale var. lucidum schefflera Schefflera arboricola strawflower Xerochrysum bracteatum (see Scotch heather Calluna vulgaris Helichrysum bracteatum) sea lavender Limonium perezii strawflower Bracteantha bracteata (see Helichrysum bracteatum) sedum Sedum spp. strawflower Helichrysum bracteatum shasta daisy Chrysanthemum superbum sugar maple Acer saccharum shining jasmine Jasminum nitidum summer lilac Buddleja davidii, Buddleia davidii shore juniper Juniperus conferta Preemergence Herbicides for Use in Ornamentals Preemergence Herbicides for Use in Ornamentals Table 5. Common name reference list for ornamental crops. Table 5. Common name reference list for ornamental crops. Common name Scientific name Common name Scientific name sunflower Helianthus spp. Washington fan palm Washingtonia robusta sweet gum Liquidambar styraciflua water oak Quercus nigra sweet tea Osmanthus fragrans wax myrtle Myrica cerifera sweet William Dianthus barbatus wedelia Wedelia trilobata sweetpea Lathyrus odoratus weeping bottlebrush Callistemon viminalis sweetspire Itea ilicifolia weeping fig Ficus benjamina sycamore Platanus occidentalis weeping podocarpus Podocarpus gracilior tabebuia Tabebuia caraiba weeping willow Salix babylonica tea, sweet Osmanthus fragrans weigela, old-fashioned Weigela florida tea tree Leptospermum scoparium willow Salix spp. ternstroemia Ternstroemia gymnanthera willow oak Quercus phellos Texas sage Leucophyllum frutescens willow, weeping Salix babylonica trailing lantana Lantana sellowiana wind flower Anemone coronaria tree “fern” Asparagus virgatus windmill palm Trqchycarpus fortunei tree fern, Australian Cyathea australis winter jasmine Jasminum nudiflorum tree, orchid Bauhinia galpinii wintercreeper Euonymus fortunei tree, tea Leptospermum scoparium wintergreen barberry Berberis julianae tree, tulip Liriodendron tulipifera wisteria Wisteria sinensis tulip bulbs, ornamental wort, St. John’s Hypericum spp. tulip Tulipa spp. xylosma Xylosma congestum tulip tree Liriodendron tulipifera yarrow Achillea spp. Van Houtte spiraea Spiraea × vanhouttei yaupon holly Ilex vomitoria variegated Chinese privet Ligustrum sinense ‘Variegated’ yucca, Adam’s needle Yucca filamentosa verbena Verbena spp. zinnia Zinnia elegan viburnum Viburnum spp. viburnum, Japanese Viburnum japonicum viburnum, sandankwa Viburnum suspensum Vicaryi privet Ligustrum × vicaryi vinca Vinca spp. voilet, African Saintpaulia ionantha Preemergence Herbicides for Use in Ornamentals Preemergence Herbicides for Use in Ornamentals