photo by james e. appleby, university of illinois
DESCRIPTION
Module 3B: Vermont Forest Pest First Detector Program. Presented by: Rhonda Mace USDA-APHIS. Photo by James E. Appleby, University of Illinois. Why Should We Be Concerned about the Emerald Ash Borer?. Killed tens of millions of ash trees already. - PowerPoint PPT PresentationTRANSCRIPT
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Forests, Parks & RecreationAgriculture, Food & Markets
Photo by James E. Appleby, University of Illinois
Module 3B:Vermont Forest Pest
First Detector Program
Presented by: Rhonda Mace
USDA-APHIS
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Why Should We Be Concerned about the Emerald Ash Borer?
Killed tens of millions of ash trees already.
New forest openings provide prime habitat for invasive plants.
Ash is a commodity wood product.
Important part of the northeast ecosystem.
Healthy ash trees are susceptible. Current infestations of concern: eastern NY and Quebec, Canada.
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EAB Hosts
Green Ash Black Ash
White AshSeeds
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Current U.S. DistributionDetection Timeline:• 2002-Detroit, Michigan• 2003-Ohio• 2004-Northern Indiana• 2006-Northern Illinois and
Maryland• 2007- Western
Pennsylvania and West Virginia
• 2008-Wisconsin, Missouri and Virginia
• 2009-Minnesota, New York and Kentucky
• 2010-Iowa and eastern NY• 2011-West Point and
Selkirk, NY
**Canada has also reported that EAB has been detected in Ontario and Quebec
catalog.kohavt.org
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Why is EAB Difficult to Control?
EAB adults are relatively strong fliers
Small and difficult to detect early
Human facilitated movement of the pest
˃ Ash tree nursery stock
˃ Infested ash logs or firewood
*Shipments of ash nursery trees and ash logs with bark are now regulated, and transporting firewood outside of the quarantined areas is illegal, but transport of infested firewood remains a problem.
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Emerald Ash Borer Life Cycle
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Reproduction1. Lay eggs shortly after emergence (May-August).
2. Eggs are light yellow color, oval-shaped. Laid individually on bark surface or in bark crevices on trunks or branches.
3. 30-60 eggs during lifetime. 4. Hatch in 7 to 10 days.
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LarvaeLarvae bore through bark to feed on phloem
and cambium.
Larvae form S-shaped tunnels that are flat and wide and packed with frass.
Mature larvae ~1” long, creamy white, flat and broad-shaped body with bell shaped segments.
Overwinter under bark.
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PupaeLarvae enter the pupal stage in
spring. Remain under bark as they
pupate. Adults emerge from the tree once
pupation is complete.
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Adult BeetleAdults emerge from tree through D-
shaped exit holes (May throughout summer).
Live about 20 days. Bright metallic green with rounded
bellies and flat backs (bullet shaped).
~1/2” in length and about 1/16th” wide.
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Commonly Confused with EAB
Six-spotted tiger beetle• Ground dwelling beetle
• White spots on back edge of wing covers
Two-lined chestnut borer• Bronze –black with two distinct lines down each wing
cover• Found on oak species
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Congratulations! You have now completed Module 3B.
Please return to the First Detector Resource webpage at
www.vtinvasives.organd complete the Module 3B Quiz.
Rhonda [email protected]
802-828-4546