Emerald Ash Borer

The very destructive Emerald Ash Borer (Agrilus planipennis), or EAB for short, is an invasive, metallic green beetle native to Asia which until May of 2018 had not been found in Maine.  It was confirmed in Madawaska, ME, however, on May 22nd, 2018 by a joint DACF – U.S. Forest Service (USFS) team.  As of 2019, it has been confirmed in three towns in southern Maine as well. It was also confirmed in Vermont in February of 2018 so it has now been found in at least 33 states. It is present in Massachusetts and New Hampshire, and was confirmed in Quebec City during the summer of 2017 as a result of routine surveys there.  Larvae feed just under the bark of ash trees, causing girdling severe enough to eventually kill the trees!  Since its discovery in the United States in 2002, this beetle has killed millions of ash trees.  As part of the prevention efforts in Maine, the Maine Forest Service reminds people not to transport firewood (more information about that can be found in the firewood link below).

Many Maine landowners and volunteers have peeled sections of ash trees to serve as trap trees in helping with early detection of EAB.  Purple traps have often been deployed as well throughout Maine to help detect any early populations of emerald ash borer that might be present.


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