Emerald ash borer
This presentation is the property of its rightful owner.
Sponsored Links
1 / 19

Emerald Ash Borer PowerPoint PPT Presentation


  • 84 Views
  • Uploaded on
  • Presentation posted in: General

Emerald Ash Borer. Agrilus planipennis Frank Hoehle. Introduction. The emerald ash borer is an Asian beetle which was first detected in the US in Canton, Michigan, possibly being introduced here by overseas shipping container.

Download Presentation

Emerald Ash Borer

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Emerald ash borer

Emerald Ash Borer

Agrilus planipennis

Frank Hoehle


Introduction

Introduction

The emerald ash borer is an Asian beetle which was first detected in the US in Canton, Michigan, possibly being introduced here by overseas shipping container.

Its mortality rate on healthy ash trees is very high, and the beetle has proven to be very hard to kill.

Currently all ash trees in North America are in danger of dying from this infestation, and it is being compared in magnitude to Dutch Elm Disease or Chestnut Blight.


The villan

The Villan

While it is a small bug, its impact is huge


Specifications of the beetle

Specifications of the Beetle

  • Dark Metallic Green

  • 1/3 of inch long

  • 1/16 inch wide

  • Body narrow and long

  • Head flat

  • Larvae approx 1 inch long, creamy white

  • Eggs, brown


Life cycle

Life Cycle


Emerald ash borer

Eggs

  • Eggs are laid in crevasses in bark

  • Dark brown in color

  • Turn yellow brown prior to hatch

  • Are laid in groups from 75-300

  • Eggs laid from May to Mid-July


Larvae

Larvae

  • Actually the stage which kills tree

  • Eggs hatch into larvae, which burrow through bark into tree

  • Consume Cambium and Phloem, effectively girdling the tree


Adult emerald ash borer

Adult Emerald Ash Borer

  • Emerges in may-July

  • Female lays numerous eggs

    in bark crevasses and

    between bark layers

  • 3-6 week life span

  • Eats ash leaves but doesn’t

    really affect tree health


What is affected

What is Affected?

  • While everything in the genus Fraxinus is in danger (unlike other blights which have usually threatened single species) the Emerald Ash Borer prefers Green Ash and Black Ash trees.

  • White Ash is killed after Green and Black Ash trees are eliminated.

  • Blue Ash shows some resistance by forming callous tissue around EAB galleries, but usually succumbs eventually


Ash trees affected

Ash Trees Affected

Green Ash

Black Ash


More affected ash

More Affected Ash

White Ash

Blue Ash


Detection

Detection

  • First detected in Canton, Michigan in June 2002

  • Brought in by overseas shipping container (suspected)

  • Now found in 14 states including Pennsylvania

    EAB Detection Box


Infestations

Infestations


Control of emerald ash borer

Control of Emerald Ash Borer

  • So far, attempts at control have ranged from:

  • Quarantine of affected wood products (they can still fly)

  • Application of Emamectin Benzoate insecticide (too costly for widespread use)

  • Direct cambial layer injections successful

  • Release of parasitic wasps (unknown possible consequences)(North American ash still succumb when planted in Asia, even with present parasitoid populations of these wasps)


How eab affects trees

How EAB Affects Trees


Even stumps should be removed

Even Stumps should be Removed

If stumps are not removed eggs could still be under bark left


Sources

Sources

  • US Forest Service

  • www.emeraldashborer.info

  • www.entm.perdue.edu

  • ento.psu.edu


Is the end near

Is the end Near?

  • At the present time, the future looks bleak for the Ash population, as no effective strategy has been developed yet. Some companies selling remedies such as TREE-age, but unknown effectiveness over time.


What can you do

What can you do?

  • Do not transport affected timber products out of your area

  • Use locally available firewood

  • Leave firewood at campsites..don’t take it home you cheapskate!

  • Treat infested trees if possible to kill EAB.

  • Consult local arborist or forester


  • Login