July 21 – 27, 2017Vol. 19, No. 7

Invasive Bugs, Chapter 2

Look for the hemlock woolly adelgid's "woolly" collections on the underside of hemlock branches.

by Dale Finseth

Last week I spoke of invasive forest pests or "bugs." I wasn't able to cover all of the problem insects so will briefly explain a couple of the other culprits be aware of. The objective remains to help people identify invasive forest pests.

Maine's Soil & Water Conservation Districts continue their work with the Maine Forest Service to help people identify invasive forest pests. That work includes hosting presentations at which we discuss what bogs to look for, how to identify evidence that they are in the area, and what to do if you happen to come upon what you think is an invasive forest pest. Later this summer and fall we will be doing a couple of these presentations in the Belgrade area.

Compare the Asian longhorned beetle (top) with the native whitespotted pine sawyer. The Asian longhorned beetle tends to be shiny with maybe a bluish tint but they can look very similar. For larger photos and more detailed descriptions, go to the University of Vermont's Asian Longhorned Beetle page.

I mentioned hemlock woolly adelgid in the earlier article. Look for its "woolly" collections on the underside of hemlock branches and along the stems where needles occur. See photo. Be careful of spreading it either on your cloths, your pets, camping equipment or even your vehicles.

A particularly scary bug is the Asian longhorned beetle. For those of you familiar with Worcester, MA, this is the forest pest that wiped out whole streets of fine old mature trees to this insect. It had gotten established and not been reported. Unfortunately the Asian longhorned beetle looks a lot like a Maine native, the pine sawyer. As of yet, the Asian longhorned beetle have not been sighted in Maine. However, the Maine Forest Service would much rather have someone call if they believe they have spotted one.

Learn how to identify these nasty forest pests. The Maine Forest Service of the Maine Dept. of Ag., Conservation and Forestry has an excellent www.kcswd.org.