Thread: Hemlocks dying
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Old 05-17-2010, 04:18 PM   #2
CrawfordCentury
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Quote:
Originally Posted by hockeypuck View Post
You may want to check for white powder like substance sticking to the needles. Could be a fungus called woolly adelgid ( not sure on the spelling). This disease attacks evergreens and must be treated with a systemic poison, that is mixed with water and watered into the roots.
I certainly hope not as this would not bode well for the forested landscape of central NH.

This is an invasive insect from eastern Asia. It's been on the radar screen of foresters and arborists for awhile.

What you'd see on the underside of a branch:


Detail of the dreaded adelgid itself:




If you find evidence of an adelgid colony, contact the UNH Co-op and let them know what you see.

Hopefully, what you are seeing is the result of an isolated stressor such as road salt or a localized trauma.
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