DOCSLIB.ORG

EMERALD ASH BORER MONITORING & MANAGEMENT EAB Module 2

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
EMERALD ASH BORER MONITORING & MANAGEMENT EAB Module 2 First Detector Training EMERALD ASH BORER MONITORING & MANAGEMENT EAB Module 2 Biology & Ecology Emerald Ash Borer: Biology & Ecology Module Objectives The purpose of this module is to review the biology and ecology of an exotic, invasive tree pest called emerald ash borer (EAB). Upon completing this module, you should be able to: • Describe the taxonomy of EAB • Identify the physical characteristics of EAB • Explain the life cycle of EAB • Name the plant hosts of EAB • Summarize the variety of EAB natural enemies © Debbie Miller, USDA Forest Service, Bugwood.org 5449380 Emerald Ash Borer: Biology & Ecology Taxonomy and Description Phylum: Arthropoda Class: Insecta Order: Coleoptera Family: Buprestidae Genus: Agrilus Species: planipennis Binomial name: Agrilus planipennis (Fairmaire) Adults are: • Iridescent green, wood-boring beetle • About 1/2″ long and 1/6″ wide • Flat-headed, creating D-shaped © Kent Loeffler, Cornell University holes in bark when emerging from pupation Emerald Ash Borer: Biology & Ecology Life Cycle EAB adults are active from late May to mid-August. They live for about 3-4 weeks and feed on ash foliage. After mating, females lay 50-100 eggs, one at a time, on the bark of ash trees. They prefer to lay eggs © David Cappaert, Michigan State University, Bugwood.org where there are cracks so the hatching larvae can squeeze into cracks and bore into the bark. EAB density is lower in the smooth- barked upper crown areas and smaller diameter white ash. EAB eggs are about the size of a pinhead and hatch 7-10 days after being deposited. Eggs change color from creamy white to brown. © Debbie Miller, USDA FS, Bugwood.org Emerald Ash Borer: Biology & Ecology Life Cycle June/July Summer/Fall Oviposition Larval growth May/June Winter Adult Emergence Pre-pupae Ovary maturation Early spring Pupation © EAB eggs, Debbie Miller, USDA FS, Bugwood.org; larva, prepupa and pupa, David Cappaert, Michigan State University, Bugwood.org; EAB exit holes, Daniel Herms, the Ohio State University, Bugwood.org; EAB adult, David Cappaert, Michigan State University, Bugwood.org Emerald Ash Borer: Biology & Ecology White ash bark anatomy © Mark Whitmore, Cornell University Emerald Ash Borer: Biology & Ecology Life Cycle After hatching, EAB larvae bore into the bark and feed on the tree’s phloem and cambium, eventually growing up to 2 cm in length. The larval stage kills the ash tree because its feeding disrupts the tree’s flow of food and nutrients. Tree death occurs within 2 or © David Cappaert, Michigan State more years depending on pest pressure. University, Bugwood.org EAB larvae overwinter as pre-pupae in the bark or within the outer ½ inch of the wood. They pupate the following spring. In colder regions or in earlier stages of infestation, the life cycle may take two years to complete. © Mark Whitmore, Cornell University Emerald Ash Borer: Biology & Ecology Where to find EAB in ash © Mark Whitmore, Cornell University Emerald Ash Borer: Biology & Ecology Life Cycle The pupal stage begins in spring and lasts about 28 days. Initial EAB adult emergence typically coincides with blooming of black locust (Robinia peseudoacacia), or about 450 GDD base 50 degrees F. © David Cappaert, Michigan State University, Bugwood.org Peak emergence is at about 900 GDD, usually in early June. Because their heads are flat on top, EAB adults create D- shaped holes in the bark as they emerge from pupation. These holes are about 1/8” wide. © Daniel Herms, the Ohio State University, Bugwood.org Emerald Ash Borer: Biology & Ecology Review How do EAB kill an ash tree? Answer When do adult EAB emerge? Answer © Debbie Miller, USDA FS, Bugwood.org Emerald Ash Borer: Biology & Ecology Taxonomy and Life Cycle Summary Stage Duration Comments Egg On and underneath bark; 7–10 days size of pinhead Larva Underneath bark; most Typically 9–10 damaging stage; up to months 1.5″ long Pupa In outer wood in spring 28 days following overwintering Adult Emerge when black locust 3-4 weeks blooms; size up to 0.5″ Emerald Ash Borer: Biology & Ecology Hosts of EAB in its Native Range EAB is not a very serious pest in its native range because trees there have evolved with the pest and developed resistance to EAB. There are also natural enemies of EAB in Asia that help keep EAB populations in check. Manchurian ash (F. mandshurica), Chinese ash (F. chinensis), and Korean ash (F. rhynchophylla) are © Mark Whitmore, Cornell University native hosts for EAB in Asia. © Herman, D.E., et al. 1996. North Dakota tree handbook. USDA NRCS ND State Soil Conservation Committee Emerald Ash Borer: Biology & Ecology Hosts of EAB in its Introduced Range Because native ash trees in North America did not co-evolve with EAB, these species have not developed resistance to the pest. Even healthy trees are vulnerable to infestation. In North America, EAB is capable of infesting all native ash trees (Fraxinus spp.). Fortunately, it has not been observed infesting any other types of trees. The most common ash trees in the US are: Cooperative Extension • Green ash (F. pennsylvanica) Cornell • White ash (F. americana) • Black ash (F. nigra) • Blue ash (F. quadrangulata) Rebecca Hargrave, Hargrave, Rebecca © Emerald Ash Borer: Biology & Ecology EAB Host Distribution in the US Ash are an important part of eastern forests, sometimes becoming the dominant species especially in swamp forests and in old fields that are reverting back to forest. Emerald Ash Borer: Biology & Ecology Basal Percentage of Ash by County In New York Green ash is an important tree in the wetlands of the Lake Ontario Plain, in some counties representing up to 28% of the Basal Area. White ash is a common upland species in the Southern Tier and is an important timber species. Emerald Ash Borer: Biology & Ecology Natural Enemies and Population Control Natural enemies and tree resistance keep native insect populations in check. When EAB was imported to the US it left all the natural enemies behind. However there are a few natural native to the US that have begun to exploit EAB as a food source. EAB larvae are a favorite food of woodpeckers. Infested trees often are riddled with holes and scaled bark from woodpeckers foraging on , Michigan State University, Bugwood.org larvae. Unfortunately, woodpecker feeding is not enough to suppress EAB. Cappaert © David Emerald Ash Borer: Biology & Ecology Natural Enemies and Population Control A couple native parasitic wasps have discovered EAB (Antanycolus spp. and Spathius spp.) sometimes causing significant levels of mortality. They lay eggs in EAB larvae under the bark. A native predatory wasp, Cerceris fumipennis, has been found to capture EAB as well as other Buprestid beetles to provision the nest that they dig into the ground. They will lay an egg on the beetles and the larvae will consume © David Cappaert, Michigan State University, the prey. Bugwood.org Watching Cerceris nests to see what beetle species are being collected is very useful for detection, but the wasp does not kill enough EAB to effectively suppress its population. To learn more about biological control of EAB, visit: http://www.emeraldashborer.info/Research.cfm#biological Emerald Ash Borer: Biology & Ecology Natural Enemies and Population Control Scientists are in the process of implementing Classical Biological Control by searching for natural enemies where EAB is native. Three species look promising and are being released at selected sites in the US: • Spathius agrili: – parasitizes larvae • Tetrastichus planipennis: – parasitizes larvae • Oobius agrili: © Debbie Miller, USDA Bugwood.org Service, Forest USDA Miller, Debbie © – parasitizes eggs To learn more about biological control of EAB, visit: http://www.emeraldashborer.info/Research.cfm#biological Emerald Ash Borer: Biology & Ecology Review What trees in North America are commonly infested by EAB? Answer What two things keep populations of native insects in check? Answer © Mark Whitmore, Cornell University Emerald Ash Borer: Biology & Ecology Module Summary • There are four main life stages for EAB: egg, larva, pupa and adult. • Adult EAB emerge from trees in spring and early summer. • The larval stage is the deadliest to ash trees because larva feed on the tree’s phloem and cambium, which disrupts the flow of food and nutrients. • In North America, EAB is capable of infesting all plants in the Fraxinus genus. • The most common Fraxinus species include white, green, blue and black ash. • Natural enemies to EAB include woodpeckers and certain native, as well as, imported stingless wasps. These enemies have not been found to appreciably suppress EAB populations in North America but work continues. Credits Content adapted from the NPDN EAB modules prepared at Virginia Tech; published June 2010 Mark Whitmore, Forest Entomologist with Cornell University Department of Natural Resources, [email protected] Prepared by Rachel McCarthy, NEPDN Education and Training Coordinator, Department of Plant Pathology and Plant-Microbe Biology, Cornell University, [email protected] .
Load more

Recommended publications
  • Communication on Cultural and Environmental Implications of the Emerald Ash Borer Invasion in Maine
    The University of Maine DigitalCommons@UMaine Honors College Spring 5-2020 Communication on Cultural and Environmental Implications of the Emerald Ash Borer Invasion in Maine Salvatore Magnano III University of Maine, [email protected] Follow this and additional works at: https://digitalcommons.library.umaine.edu/honors Part of the Entomology Commons, and the Indigenous Studies Commons Recommended Citation Magnano, Salvatore III, "Communication on Cultural and Environmental Implications of the Emerald Ash Borer Invasion in Maine" (2020). Honors College. 613. https://digitalcommons.library.umaine.edu/honors/613 This Honors Thesis is brought to you for free and open access by DigitalCommons@UMaine. It has been accepted for inclusion in Honors College by an authorized administrator of DigitalCommons@UMaine. For more information, please contact [email protected]. COMMUNICATION ON CULTURAL AND ENVIRONMENTAL IMPLICATIONS OF THE EMERALD ASH BORER INVASION IN MAINE by Salvatore Magnano III A Thesis Submitted in Partial Fulfillment of the Requirements for a Degree with Honors (Ecology and Environmental Sciences) The Honors College University of Maine May 2020 Advisory Committee: John Daigle, Professor of Forest Recreation Management, Advisor François Amar, Dean of the Honors College and Professor of Chemistry Robert Northington, Lecturer and Post-Doctoral Research Associate in the School of Biology and Ecology Darren Ranco, Associate Professor of Anthropology and Coordinator of Native American Research Abigail Roche, Doctoral Student and Lecturer in Communication and Journalism Kate Ruskin, Lecturer in Ecology and Environmental Sciences ABSTRACT The introduction of the Emerald Ash Borer (EAB), Agrilus planipennis, in the United States in the early 1990’s, has resulted in a wave of ecological, economic, and cultural impacts that will forever leave a scar in the forests of North America.
    [Show full text]
  • Lilac (Ash) Borer Pupal Skins Extrude from Trunk
    Lilac (Ash) Borer Pupal skins extrude from trunk Name and Description—Podosesia syringae (Harris) [Lepidoptera: Sesiidae] Adult lilac (ash) borers are moths that vary in color from brown to yel- low to orange. They have clear wings with a span of about 1-1 1/8 inches (26-28 mm) and appear wasp-like (fig. 1). Larvae are about 1 inch (2.5 cm) long and are white with brown heads (fig. 2). Hosts—Ash and lilac Life Cycle—There is one generation per year. Mature borer larvae over- winter in tunnels under the bark. Adult moths emerge from March through June to lay eggs on the bark of host trees. The larvae bore into trunks and branches of the sapwood of trees during the summer. Galleries can be up to 6 inches (15 cm) long. Figure 1. Adult ash borer. Photo: Daniel Herms, Ohio State University, Bugwood.org. Damage—The mining of the larvae causes branch dieback (fig. 3). It can also lead to broken branches. The leaves on affected branches turn brown as the branch dies. Extensive mining can also lead to tree death. Entrances to lar- val mines often appear as sunken or cankered areas on the bark of the trunk or branch. Dark, moist sawdust can be found around the Figure 2. Ash borer larva. Photo: James Solomon, USDA Forest gallery entrance (fig. 4). Pupal Service, Bugwood.org. skin remaining in the bark is often also observed (fig. 5). Management—Avoid damaging trees—maintaining trees in good health reduces their susceptibil- ity to attack. There are chemical sprays that are highly effective at Figure 3.
    [Show full text]
  • Forest Health Conditions in Ontario, 2017
    Forest Health Conditions in Ontario, 2017 Ministry of Natural Resources and Forestry Forest Health Conditions in Ontario, 2017 Compiled by: • Ontario Ministry of Natural Resources and Forestry, Science and Research Branch © 2018, Queen’s Printer for Ontario Printed in Ontario, Canada Find the Ministry of Natural Resources and Forestry on-line at: <http://www.ontario.ca>. For more information about forest health monitoring in Ontario visit the natural resources website: <http://ontario.ca/page/forest-health-conditions> Some of the information in this document may not be compatible with assistive technologies. If you need any of the information in an alternate format, please contact [email protected]. Cette publication hautement spécialisée Forest Health Conditions in Ontario, 2017 n'est disponible qu'en anglais en vertu du Règlement 671/92 qui en exempte l’application de la Loi sur les services en français. Pour obtenir de l’aide en français, veuillez communiquer avec le ministère des Richesses naturelles au <[email protected]>. ISSN 1913-617X (Online) ISBN 978-1-4868-2275-1 (2018, pdf) Contents Contributors ........................................................................................................................ 4 État de santé des forêts 2017 ............................................................................................. 5 Introduction......................................................................................................................... 6 Contributors Weather patterns ...................................................................................................
    [Show full text]
  • Tree Pest Alert
    Tree Pest Alert May 12 Volume 19, Number 13 In This Issue Plant development for the growing Plant Development .................................................................... 1 season Treatments to begin now........................................................... 1 Timely topic ............................................................................... 2 The weather is finally staying warm which is a Emerald ash borer update ..................................................... 2 Tree pollen allergies .............................................................. 2 prerequisite for spring growth, but we are not receiving E-samples ................................................................................. 3 the rains needed to “fuel” this growth. If we do not start Linden galls ........................................................................... 3 receiving our spring rains soon, we may find our trees Planting problems .................................................................. 3 and shrubs severely stressed by this dry spell. We have Samples received/site visits ...................................................... 3 had about 7.4 inches of precipitation in Sioux Falls so far Brookings County (dying spruce) .......................................... 3 in 2021. By this same time in 2019 we were at 14 Grant County (fabric problems) ............................................. 4 inches! Lawrence County (woolly pine aphid).................................... 4 Lincoln County (ash problems) .............................................
    [Show full text]
  • Clearwing Moth PN 7477 Rev2
    CLEARWING MOTHS Integrated Pest Management for Home Gardeners and Landscape Professionals The larvae of several species of clear- wing moths in the insect family Sesiidae are important wood-boring pests in landscapes. Hosts include (actual size) alder, ash, birch, fir, oak, pine, poplar, sycamore, willow, and stone fruit trees such as apricot, cherry, peach, and plum. Larvae that closely re- (actual semble those of clearwing moths in- adult egg size) clude the American plum borer (Euzophera semifuneralis, family (actual Pyralidae), a serious boring pest of size) hosts that include fruit and nut trees, pupa mountain ash, olive, and sycamore. Other common wood-boring pests in landscapes include bark beetles (fam- larvae ily Scolytidae) (for more information, see Pest Notes: Bark Beetles, listed in Suggested Reading), longhorned bor- ers (Cerambycidae), and round- headed borers (Buprestidae). (actual size) IDENTIFICATION Dying limbs, rough or gnarled bark, Figure 1. Clearwing moth stages and life cycle. and sawdustlike frass (insect excre- ment) are good indications that trees wider hind wings. The hind wings, pheromone that attracts males. After are infested with wood-boring in- and in some species the front wings, mating, the female deposits her tiny sects. When clearwing moth larvae are mostly clear. These moths fly dur- reddish to pale pink eggs in cracks, bore beneath tree bark, they push ing the day or at twilight, and their crevices, and rough or wounded areas frass from their tunnels; the frass is yellow and black coloring resembles on bark. Eggs hatch in about 1 to 4 sometimes mixed with gummy tree that of paper wasps or yellowjackets.
    [Show full text]
  • Lilac/Ash Borer: a Common Wood Borer of Colorado’S Street Trees Fact Sheet No
    Lilac/Ash Borer: A Common Wood Borer of Colorado’s Street Trees Fact Sheet No. 5.614 Insect Series|Trees and Shrubs by W.S. Cranshaw* Lilac/ash borer (Podosesia syringae1) is Quick Facts common wood borer associated with ash throughout Colorado and a species that is • Lilac/ash borer is an native to North America. Damage is caused insect native to North by the larvae which tunnel into the trunks America that is common and lower branches of ash trees. These in ash trees, particularly if feeding injuries produce irregular gouging trees are stressed due to wounds under the bark and tunneling drought, injury or that were frequently extends deeply into the heartwood recently transplanted. (Figure 1). Almost all larval feeding activity occurs in the lower trunk, particularly around • Damage is done by the larva; the soil line (Figure 2). Lower scaffold limbs a type of caterpillar that may also be attacked and infestations may tunnels into the trunk and extend about 10 feet up the trunk. Feeding lower branches of ash trees. damage can often be found in the mid and upper crown of trees above areas that were • If necessary, lilac/ash borer treated with contact insecticides. can be easily controlled by External evidence of lilac/ash borer spraying the trunk and lower activity in trees can include irregularly Figure 1. Lilac/ash borer larvae tunneling branches in spring during round exit holes of about 1/4-inch diameter exposed from under the bark. Photograph by the time when adult females David Leatherman. on trunks (Figure 3).
    [Show full text]
  • Emerald Ash Borer Program Manual
    Emerald Ash Borer Program Manual Agrilus planipennis (Fairmaire) Cover image of Emerald Ash Borer courtesy of Joel Floyd Some processes, equipment, and materials described in this manual may be patented. Inclusion in this manual does not constitute permission for use from the patent owner. The use of any patented invention in the performance of the processes described in this manual is solely the responsibility of the user. APHIS does not indemnify the user against liability for patent infringement and will not be liable to the user or to any third party for patent infringement. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or part of any individual’s income is derived from any public assistance program. (Not all prohibited bases apply to all programs). Persons with disabilities who require alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA’s TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, SW., Washington, DC 20250-9410, or call (800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity provider and employer. When using pesticides, read and follow all
    [Show full text]
  • Conservation Gardener, the North 8,000 Children Each Year Through Field Anniversary) and 3,200 Members Like You
    CONSERVATION GARDENER SPRING & SUMMER 2016 THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL IN THIS ISSUE ON THE COVER Past, present and future 3 Transformation 4 Meet Northern rattlesnake-master 5 Northern Celebrating 50 Years 6 Emerald Ash Borer 10 rattlesnake-master Pollinator Garden 14 Thank you! 15 Eryngium yuccifolium Illustration by Dot Wilbur-Brooks 4 5 6 10 To inspire understanding, appreciation, and conservation of plants and to advance a sustainable relationship between people and nature. SPECIAL THANKS There is so much to be thankful for as I reflect back on my first year as Director. Past, present We belong to the University of North Carolina at Chapel Hill, the finest public research university in the nation. We and future have an amazing and dedicated staff with expertise and institutional knowledge that BY DAMON WAITT, NCBG DIRECTOR would be the envy of any public garden. We delight in the fellowship of hundreds of volunteers whose time and talent is vital Dear Members and Friends, to our operation. And we benefit from the wisdom and support of the Botanical Welcome to this first issue of the workshops and classes. We serve over Garden Foundation (also celebrating its 50th Conservation Gardener, the North 8,000 children each year through field anniversary) and 3,200 members like you. Carolina Botanical Garden’s new trips and school outreach and offer magazine for members. By the time this more than 40 on site programs inaugural issue reaches your mailbox, designed to connect children and the Garden will be celebrating its 50th families to the natural world through anniversary and I will have completed summer camps, early childhood classes, my first year as the Garden’s first full- afterschool and homeschool programs.
    [Show full text]
  • Ecological Impacts of Emerald Ash Borer in Forests at the Epicenter of the Invasion in North America
    Review Ecological Impacts of Emerald Ash Borer in Forests at the Epicenter of the Invasion in North America Wendy S. Klooster 1,*, Kamal J. K. Gandhi 2, Lawrence C. Long 3, Kayla I. Perry 4 ID , Kevin B. Rice 5 and Daniel A. Herms 6 1 Department of Entomology, The Ohio State University, Columbus, OH 43210, USA 2 Daniel B. Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA 30602, USA; [email protected] 3 Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC 27695, USA; [email protected] 4 Department of Entomology, The Ohio State University, Ohio Agricultural Research and Development Center, Wooster, OH 44691, USA; [email protected] 5 Division of Plant Sciences, University of Missouri, Columbia, MO 65211, USA; [email protected] 6 The Davey Tree Expert Company, Kent, OH 44240, USA; [email protected] * Correspondence: [email protected]; Tel.: +1-614-292-2764 Received: 31 March 2018; Accepted: 3 May 2018; Published: 5 May 2018 Abstract: We review research on ecological impacts of emerald ash borer (EAB)-induced ash mortality in the Upper Huron River watershed in southeast Michigan near the epicenter of the invasion of North America, where forests have been impacted longer than any others in North America. By 2009, mortality of green, white, and black ash exceeded 99%, and ash seed production and regeneration had ceased. This left an orphaned cohort of saplings too small to be infested, the fate of which may depend on the ability of natural enemies to regulate EAB populations at low densities.
    [Show full text]
  • Emerald Ash Borer [Agrilus Planipennis (Fairmaire)] Lori R
    Published by Utah State University Extension and Utah Plant Pest Diagnostic Laboratory ENT-171-14-PR August 2014 Emerald Ash Borer [Agrilus planipennis (Fairmaire)] Lori R. Spears, CAPS Coordinator • Ryan S. Davis, Arthropod Diagnostician • Ricardo A. Ramirez, Entomologist Do You Know? • The Emerald Ash Borer (EAB) is a recent invasive pest, and is considered to be one of the most destructive forest insects to ever invade the U.S. • EAB adults are very good fliers, but new infestations are primarily caused by people moving wood from infested areas. • New infestations are difficult to detect and damage may not be obvious for years. However, by then it may be too late – an EAB infestation is nearly always fatal to the tree. • EAB has not yet been reported in Utah. To help prevent the spread of EAB, avoid transporting Fig. 1. Emerald ash borer adult feeding on an ash leaf.1 firewood across county and state lines. merald ash borer (Order: Coleoptera: Family EBuprestidae) (EAB) (Figs. 1-2) is an exotic, invasive wood-boring insect that specializes on true ash species (Fraxinus spp.). EAB is native to parts of China, Korea, Japan, Taiwan, and small areas of Russia and Mongolia. EAB was first discovered in North America in June 2002 near Detroit, Michigan and Windsor, Ontario, and is thought to have arrived to North America via infested wood packing material. Evidence suggests that EAB is generally established in an area for several years before Fig. 2. Adults have a copper red or purple abdomen.2 it is detected. Since arriving in North America, EAB has been found in more than 20 mid-western and eastern a flattened body, and an iridescent purple abdomen states, killing tens of millions of ash trees.
    [Show full text]
  • A Reference for Recognizing Insect Galleries in Ash Trees in Minnesota
    A Reference for Recognizing Insect Galleries in Ash Trees in Minnesota Plant Protection Division AGPL01-2008-01 Overview: The purpose of this document is to provide images of different types of damage from pests that may be found in ash trees in Minnesota and to contrast the appearance of these damage types with that caused by emerald ash borer (EAB). All images in this document are of insect damage found in ash trees in Minnesota with the exception of the EAB images which were taken in Ohio and Michigan, as noted. For information on symptoms of EAB on standing trees or comparisons of larval and adult EAB with other insects, see the links below. Contents: Insect Family Page Scolytidae 3 Agromyzidae 4 Cerambycidae 5 Buprestidae (not emerald ash borer) 6 Sessiidae 7 Buprestidae (emerald ash borer) 8 For more information: Identification of Emerald Ash Borer and Other Ash Insects: http://www.emeraldashborer.info/identifyeab.cfm http://na.fs.fed.us/fhp/eab/pubs/fieldguide/eabfg.pdf http://www.dnr.wi.gov/Forestry/FH/Ash/eab-id.htm http://www.forestpests.org/ash/ Emerald Ash Borer Information: http://www.emeraldashborer.info http://www.mda.state.mn.us/invasives/eab Figure 1. Bark Scolytidae: beetle Unlike other insects found in detection trees, adult emergence bark beetles feed under the bark just as the larvae holes. do. Bark beetles galleries may take the shape of reproductive galleries like figures 3 and 4 or adult feeding galleries like figures 2 and 5. Ash bark beetles (Hylesinus spp.) were found in 83% of ash trees sampled by Minnesota Department of Agriculture (MDA) during EAB detection tree surveys during 2007.
    [Show full text]
  • Insect Galleries in Ash Trees in Minnesota J Overview : Contents
    A R E F E R E N C E F O R Recognizing Insect Galleries in Ash Trees in Minnesota j OVERVIEW : Contents: The purpose of this document is to provide Insect Family Page images of different types of damage from pests that may be found boring in ash trees in Scolytidae ................................... 3 Minnesota and to contrast the appearance of these damage types with that caused by emerald Agromyzidae ................................ 4 ash borer (EAB). All images in this document are Cerambycidae ............................... 5 of insect damage found in ash trees in Minnesota unless otherwise noted. For information on Sessiidae ................................... 6 external symptoms of EAB on standing trees or comparisons of larval and adult EAB with other Buprestidae (not emerald ash borer) .......... 7 insects, see the links below. Buprestidae (emerald ash borer) .............. 8 FOR MORE INFORMATION : Identification of Emerald Ash Borer and Other Ash Insects: http://www.emeraldashborer.info/identifyeab.cfm http://na.fs.fed.us/fhp/eab/pubs/fieldguide/eabfg.pdf http://www.forestpests.org/ash/ Emerald Ash Borer Information: http://www.emeraldashborer.info http://www.mda.state.mn.us/invasives/eab 2. S CO LY T I DA E : Unlike other insects, adult ash bark beetles feed under the bark just as the larvae do. Bark beetles galleries may take the shape of reproductive galleries like figures 3 and 4 or adult feeding galleries like figures 2 and 5. During 2007-2008 EAB detection tree surveys, ash bark beetles (Hylesinus spp.) were found in ~70% of 1800+ ash trees sampled by Minnesota Department of Agriculture (MDA) across the state. Figure 1.
    [Show full text]