Asian longhorned beetle

(Anoplophora glabripennis)

Learn here how to identify Asian longhorned beetle, where it is and how to help keep it from moving to new places. This pest is a serious threat to Wisconsin forests because it can attack many different tree species, even when the trees are healthy. Many types of trees affected by this beetle also line miles of neighborhood streets in urban areas.


A pest of maples and other hardwoods, Asian longhorned beetle (ALB) is native to China and the Koreas. Although ALB has not been found in Wisconsin, it currently infests areas in Massachusetts, New York, Ohio and Ontario, Canada. It has also been found in Austria and France.

Asian longhorned beetle in the United States

Asian longhorned beetle is believed to have entered North America from Asia stowed away in wood packing materials. The insect was likely accidentally introduced several times before regulations were put in place requiring treatment of wood packing materials to eliminate hitchhiking insects and fungi.

Common Buckthorn

Common Buckthorn

(Rhamnus cathartica)


(Hypophthalmichthys nobilis and H. molitrix)