Watch Out for Invasive Insects

Norwalk River Watershed Association

Several new insects have taken hold in our area and are beginning to cause serious damage to their target trees. The Asian Long-horned Beetle and the Emerald Ash Borer are two of these most recently found in our environment. Connecticut DEEP offers information and photographs of these organisms, their lifecycle and how to diagnose their presence in our trees.

Emerald Ash Borer
Photograph courtesy of University of Wisconsin, Madison
Asian Longhorn Beetle
Photograph courtesy of Wikipedia