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Emerald Ash Borer

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by

Cathy McCabe

on 25 April 2014

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Transcript of Emerald Ash Borer

Emerald Ash Borer
The EAB is an invasive species that came to North America from Asia.
It was first discovered in Michigan and Windsor in 2002 . The EAB were known to be present in 12 states and two provinces as of June 2009 .
They are a metallic green colour and are between 8.5 to 13.5 mm long.
The female adults lay their eggs on the bark of the tree. They lay an average of about 70 eggs at a time.
The eggs are a cream or light yellow colour and are 1mm long and 0.6mm wide
What you can do
Information about the Emerald Ash Borer (EAB)
Ash Trees
Photo by Steven Katovich, USDA Forest Service, University of Georgia
The EAB larvae tunnels through the bark and feed on the cambium layer.
The trees dies when there are a high number of tunnels, which deprives the tree of water and nutrients.
One sign of EABs is their D-shaped exit holes in the tree bark
How EABs attack trees
Photo by James Marvin Phelps
Photo by Anna Hesser
To prevent the spread of the EAB, do not move firewood from places infected with the EAB to other locations.
If you have an ash tree on your property and believe it is infected contact the Niagara Restoration Council for an inspection.
You can also contact the Government of Canada for an inspection by visiting: www.inspection.gc.ca
There are insecticides that can be used on ash trees as prevention or treatment.
Photo by USDA gov
The EAB attacks all species of ash trees and can be found in both rural and urban area.
Ash (Genus Fraxinus) are deciduous trees
White Ash and Green Ash are the most common in the Niagara Region, but Red Ash and Black Ash can also be found.
When attacked by the EAB, the trees die from the top down.
An infected tree has a lack of foliage or a patchy tree canopy.
If more than 50 percent of a tree’s canopy is gone, then it is probably too late to save it.
It is best to treat the tree with insecticide while it is still relatively healthy.
How the Ash trees are effected
Works consulted:
"Trees in Canada" by John Laird Farrar
"Insecticide Options for Protecting Ash Trees from Emerald Ash Borer" Fact sheet
Ontario Ministry of Natural Resources
Full transcript