Purple boxes spotted in Genesee County trees designed to trap Emerald Ash Borer

Purple boxes are being spotted all over Genesee County. They can be seen hanging from trees and look rather curious.

The hanging prisms are intended to help USDA and state officials spot any new infestation of the Emerald Ash Borer, a pesky little beetle that munches on Ash leaves, but worse, lays larva in the Ash bark, which bores into the wood, disrupting a trees circulation system, eventually killing the tree.

Emerald Ash Borers have killed 10s of millions of Ash trees in North America, according to Sharon Lucik, a public information officer for the USDA in Michigan, where the beetle was first spotted in the U.S. in 2002.

No beetles have been found in New York, yet, with the borers being found in Canada and Pennsylvania, the USDA and state officials want to know as soon as it is spotted in the area, if ever, and make sure the area is quarantined, which means no wood can be transported from that area.

Apparently, the Emerald Ash Borer loves the color purple. The traps also contain a lure that smells to the beetle like a distressed Ash tree, such as one that has been damaged by man or mother nature.  The beetles will attack a healthy tree, but are quick to head to a tree it suspects is in a weakened state.

The beetles like Ash and only Ash.

Reader Gary Diegelman, who alerted us to this story and did some initial research, said he found out the boxes are placed on road right of ways approximately every 1.5 miles. The boxes will be hanging around most of the summer.

There is no government eradication program, Lucik said. It's up to each individual property owner to decide what to do if a beetle is found on his or her property.  The options include doing nothing, spraying a pesticide or removing the invested trees.  Of course, in the third option, the wood cannot be taken from the quarantined area.

The Ash Borer is a native of Asia and there is no known predator for the pest in North America.  It probably arrived in the U.S. riding in packing create wood or pallets aboard cargo ships.

The beetle would probably only migrate no more than half a mile a year on its own, Lucik said, but when people use Ash for fire wood or building material, the Ash can be transported up to hundreds of miles. 

The USDA program is designed aimed at quick detection so any invested Ash doesn't leave the area.

(Trap picture borrowed from a government Web site. It is not a local picture.)