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Hot Topics EAB Management · Utilization of Harvested Ash Wood • Lumber • For trees with > 12...

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4/16/2015 1 Mark Smith M.S. Geoscientist Annette Evans Ph.D. Student at the University of Connecticut www.macroscopicsolutions.com Troy Kimoto, Canadian Food Inspection Agency, Bugwood.org Overview Where is the EAB currently found in North America? What is currently being done about the EAB? Survey Control What can you do about the EAB Howard Russell, Michigan State University, Bugwood.org David Cappaert, Michigan State University, Bugwood.org
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Page 1: Hot Topics EAB Management · Utilization of Harvested Ash Wood • Lumber • For trees with > 12 inches DBH, bole > 6 feet • If ash tree is already dead, has only been so for less

4/16/2015

1

Mark Smith M.S. Geoscientist Annette Evans Ph.D. Student at the University of Connecticut 

www.macroscopicsolutions.com

Troy Kimoto, Canadian Food Inspection Agency, Bugwood.org

Overview

• Where is the EAB currently found in North America?

• What is currently being done about the EAB?• Survey

• Control

• What can you do about the EAB

Howard Russell, Michigan State University, Bugwood.orgDavid Cappaert, Michigan State University, Bugwood.org

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EAB in North America:

24 States, 2 Canadian territories (and counting…Louisiana was the newest to find EAB ‐February 2015)

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5 0 5 10 Miles

1:750000

N

2012

Litchfield Co.

Tolland Co.

Windham Co.

County Boundary

Town Boundary

Quarantine –All of CT

2013

2014

1st Detection Method

wasp

trapsurveyhomeowner

EAB in CT as of December, 2014…

46 towns (and counting…)

From:  Municipal EAB Management Series Your EAB Management Options vs. the "Death Curve" Jim Zwack, M.S., The Davey Institute

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Mark Smith M.S. Geoscientist Annette Evans Ph.D. Student at the University of Connecticut www.macroscopicsolutions.com

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Purple Trap Survey

• Sticky purple prism “Barney” traps are hung in ash trees with manuka oil as an EAB attractant; checked every 2 weeks

• 2014 trapping focused exclusively on the 4 easternmost CT counties, as EAB had already been detected in the 4 westernmost counties.

• In 2014, purple traps detected the first new EAB infestations in Middlesex and New London counties; 6 towns overall

• Purple trap surveys will no longer occur in CT as CT is now under a full state quarantine.

Other Trapping SurveysPennsylvania Department of Conservation and Natural Resources ‐ Forestry Archive, Bugwood.org

Lindgren Funnel Trap Girdled “Trap Tree”

(Trapping is for surveillance, not control)

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Biosurveillance

• Cerceris fumipennis – “the smokey‐winged beetle bandit”

• Small solitary wasp active in early ‐mid summer• Digs burrows in sandy soils – like baseball fields• Specializes in catching beetles from the family Buprestidae

• EAB is a Buprestid…

• Scientists and citizen scientist “wasp watchers” collect captured beetles from Cerceris colonies

• Captured beetles are identified to see if any are invasives such as EAB

• Also a good opportunity to survey the diversity of Buprestids in CT…

Cerceris Colonies in CT:

Ball fields are great habitat for ground‐nesting wasps 

such as Cerceris

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Biocontrol

• Two parasitoid wasp species have been released yearly in the state since the detection of EAB in CT:

• Oobius agrilii, an egg parasitoid• Tetrastichus planipennisi, a larval parasitoid

• Releases in 2013, 2014, and planned for 2015

• Wasps released in Michigan since 2007• resulted in recoveries the following year • there are overwintering populations

• Establishment?  Time will tell…

Biocontrol Releases in CT

Oobius release – infested EAB eggsTetrastichus release – infected EAB larvae

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David Cappaert, Michigan State University, Bugwood.org

(Don’t Panic!!!)(Don’t Panic!!!)

Step 0:  Plan Ahead!• Don’t wait; have a preparedness or response plan ready ahead of time

• Do you have a tree inventory?

• Remember:  significant ash mortality begins about 2 years after a local EAB detection

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Step 1:  Ash Identification and Tree Inventory

• Identify your ash trees • (If you can, ID other trees and do a tree inventory while you’re at it!)

• Take DBH (Diameter at Breast Height)

Keith Kanoti, Maine Forest Service, Bugwood.org

Step 1.5:  “What’s an ash tree look like?”• Opposite branching

• “MAD Horse” – predominant opposite‐branched trees are Maple, Ash, Dogwood, and Horsechestnut

• Pinnately compound leaves, usually with five to seven ‘leaflets’

• Seeds are winged samaras• Bark on young trees is smooth; as the tree ages the bark becomes thick and ridged, with a diamond‐like pattern.

*Paul Wray, Iowa State University

Michigan Department of Agriculture, Bugwood.org

T. Davis Sydnor, The Ohio State University, Bugwood.org

Richard Webb, Self‐employed horticulurist, Bugwood.org

Brett Marshall, Sault College, Bugwood.org

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Steven Katovich, USDA Forest Service, Bugwood.org

Step 2:  Select Candidates For Preservation 

• Criteria to consider :• Health of tree• Tree’s value in landscape• Personal value – is it a memorial or champion tree?• Size of tree • Cost of treatment vs. cost of removal

• Trees that are already in > 50% decline are not likely to respond to treatments

• Larger trees are more expensive to treat, and depending on location, more expensive to remove

• Removal may be more costly in the short run, but as treatments need to happen yearly, it may cost more in the long run

• Speak with a local arborist regarding treatment/removal options and cost

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Step 3:  Treat/Remove: Treatment• It’s time to treat trees when EAB has been detected within 15 miles of your property

• “Present” and “detected” are separate –EAB will generally have been in an area for several years before it’s formally detected

• Trees that are < 20” DBH can be treated with products available to homeowners

• Larger trees will require a licensed arborist and specialized equipment to treat

• Hire a certified professional; ask for references

• According to current research, treatments should be applied yearly

• Most systemic treatments are applied in the spring; foliar treatments need to be timed with adult EAB emergence (400 –450 growing degree days)

EAB Treatments:

For Professionals:

For Homeowners:

Reference:  “Insecticide Options for Protecting Ash Trees from Emerald Ash Borer” by North Central IPM

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Step 3:  Treat/Remove: Removal

• Trees that are not to be treated should be removed (harvested) prior to infestation, decline, and death

• Proactive removal reduces issue and cost of dealing with many dead/dying trees at once

• Ash deteriorates quickly after it dies; trees alongside streets or buildings pose hazard risk if left standing dead

(AP Photo/J.D. Pooley, File)

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Utilization of Harvested Ash Wood• Lumber

• For trees with > 12 inches DBH, bole > 6 feet 

• If ash tree is already dead, has only been so for less than 1 year

• Mulch for home landscaping

• Art and/or furniture

• Donate cut wood to a local community organization

• Raw materials are needed for civic projects (park benches, picnic tables, construction programs, Scout projects, etc.)

• Firewood• Don’t move it; burn it locally

• For more ideas, visit the Illinois EAB Ash Wood Utilization Team website:http://illinoisurbanwood.org/

Illinois sawyer, Ron Myers, mills a log into lumber. Photo: Michele Beaulieux

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Pam Owen

An Alternate Step 3:  Do Nothing

• Only consider this option if the ash tree will not pose a hazard risk if/when it falls, i.e. it is in a woodlot, not in a yard or along a street

• Do nothing; EAB will eventually infest the tree and it will decline and die

• Standing dead trees (‘snags’) and fallen logs are normal and beneficial to an ecosystem as wildlife habitat:

• Nesting sites for birds

• Shelter for mammals

Step 4:  Replacement

• If desired, replace removed ash trees with non‐host trees  (note: there is evidence that EAB may be able to infest White Fringetree)

• Planting a street or landscape diversely prevents large‐scale loss of trees from host‐specific pests

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Robert Vidéki, Doronicum Kft., Bugwood.org

Resources

• For the latest info on EAB biology, response plans, preparedness plans, a collection of current research, publications…www.emeraldashborer.info

• EAB Cost Calculator http://extension.entm.purdue.edu/treecomputer/

• CAES EAB Website:www.ct.gov/caes/eab

• List of CTPA Members ‐ Licensed Arborists:www.ctpa.org


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