New England Maples at Risk

By Shelley Harms

The life cycle of the Asian Long-Horned Beetle (courtesy of University of Vermont)

The Asian Long-Horned Beetle and the Emerald Ash Borer have not been reported in Connecticut, but they may be here nonetheless. As spring approaches, residents should be vigilant for signs of these insects, which kill trees when their larvae bore through and feed under the bark.
The Asian Long-Horned Beetle is a large, shiny, black and white, showy insect with very long, striped antennae. It is deadly to most hardwoods, and is especially fond of maples. Outbreaks have damaged and killed trees in Brooklyn, New York and Worcester, Massachusetts.
The Emerald Ash Borer is a metallic green beetle about half an inch long. It damages and kills ash trees only. It is found in several states including New York.
These beetles are of federal regulatory concern. The government will take action to eradicate them if they are found.

Residents who find one of these beetles should place it in a glass container and store it in the freezer, then call the Connecticut Agricultural Experiment Station at 1-203-974-8440. You can also contact the Norfolk Conservation Commission if you suspect you have found one of these beetles, or if you need more information, at conservationcommission@norfolkct.org.

Emerald Ash Borer’ lifestyle (courtesy of Michigan Department of Agriculture)