
You may have noticed newly hung purple triangular boxes in area ash trees. These are Emerald Ash Borer monitoring traps. In addition to the purple being an attractant to the Borer, they are covered in a sticky lure. The Emerald Ash Borer (EAB) is a small green beetle whose larvae feed on the living tissue under the bark. They are non-native and therefore do not have any predators to keep their populations in check. Originating from Asia, this invasive insect was first found around Detroit, Michigan in 2001. Since then, EAB has spread to 15 states and two provinces, killing tens of millions of ash trees. None of our native ash trees are safe. As of 2010, New York has 6 known infestations affecting 7 counties, as well as two infestations just across the border in Canada.
The purple traps have been hung by APHIS are for monitoring only, not for control. These traps are hung along commonly used roads, in campgrounds, and around sawmills through a national monitoring program; they are not available to landowners. Right now, we do not know of an EAB infestation in Tioga County or any of our immediate neighboring counties. But, now is the time to make thoughtful decisions about managing woodland, park, yard, and street ash trees.
Quick EAB (Emerald Ash Borer) Facts:

It attacks only ash trees (Fraxinus spp).

Adult beetles are metallic green and about 1/2-inch long.

Adults leave a 1/8” D-shaped exit hole in the bark when they emerge in late spring.

Woodpeckers like EAB larvae; heavy woodpecker damage on ash trees may be a sign of infestation.

One of the factors that has led to the rapid spread of the EAB is through the movement of infested ash firewood. EAB is one of the reasons to “Don’t Move Firewood.” http://www.dontmovefirewood.org/
For more information about the Emerald Ash Borer, including how to plan and manage for it, what signs and symptoms to look for, and how to report EAB.
Go to http://nyis.info or call Cornell Cooperative Extension of Tioga County at 607-687-4020
Questions and Answers: Emerald Ash Borer Quarantine
Tags: EAB, Emerald Ash Borer