We have no real reason to have these little tree eaters around.
Emerald Ash Boer infestation can take up to two years to recognize. Look for D-shaped holes around the trunk and on the branches. Check the shoots growing up from the base of the tree for these holes, as well.
The Emerald Ash Boer kills the tree when the larvae of the insect destroy the phloem (responsible for nutrient distribution throughout the tree) and the xylem (responsible for the uptake of water and nutrients) tissues of the tree. Effectively strangling the tree.
Emerald Ash Boers are difficult to kill. A pilot study is being undertaken in Michigan to determine if three different parasitic wasps can deter the emerald ash borer. These tiny stingless wasps can sense beetles underneath the bark and then lay their eggs in the larvae or egg, thus killing them. It is not known at this time whether their release will have any unintended ecological impacts.The wasps have been released according to a Michigan newspaper. The releases began in July 2007, a few weeks later than they had hoped.
Have a look at this pdf to find directions for treating an infested tree.
http://www.emeraldashborer.info/files/E2955.pdf
Take another look, and if you see one or two...a bunch, swat'um.
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