Shiny, black body Irregular, white, or yellowish spots Black and white, banded antennae 1 1/2 0 Body length is 3/4 to 1 1/2 inches What to look for from early spring through late fall Photo by Donald Duerr, USDA, Forest Service
What trees are likely to be damaged? Elm, maple, boxelder, birch, horse chestnut, poplar, willow, mimosa, hackberry, and more.
Large, 3/8” round exit holes in trees indicate an infestation. Photo by Barry Emmons, USDA-APHIS
How did it get here? The Asian longhorned beetle often travels inside wood packing material or wood products from China, Korea, and Taiwan. Photo by Ken Law, USDA
Asian longhorned beetle life cycle
You can help! If you see this pest, Take a photograph of it. Collect it in a glass jar. Freeze it overnight. Call our California hotline at If not in California, call your state department of agriculture or your state National Plant Diagnostic Network Lab, Photo by Christian Tomiczek, Federal Forest Research Centre, Austria
Aftermath of Asian longhorned beetle damage in Chicago. Photo by Michael T. Smith The Asian longhorned beetle could severely damage our urban forests and trees in wildlands. If caught early, it can be eradicated before it spreads. Save our trees! Remember. You can help.