Exotic Longhorned Beetles

Asian longhorned beetle (ALB), Anoplophora glabripennis

image of Asian longhorned beetle by Donald Duerr, USDA Forest Service

The Asian longhorned beetle (ALB), Anoplophora glabripennis, is a woodboring beetle native to China. ALB develops and reproduces within healthy and stressed deciduous hardwood trees, such as maple, birch, horsechestnut, poplar, willow, elm, and ash. Attacked trees will eventually die.

Currently, the Asian longhorned beetle is known to be in Massachusetts, New York, and Ohio, where quarantines are in place to reduce its spread. It was rediscovered in Toronto, Canada in 2013.

North American map of Asian longhorned beetle finds, USDA Forest Service
(click map to enlarge).

Citrus longhorned beetle (CLB), Anoplophora chinensis

image of Asian longhorned beetle by Donald Duerr, USDA Forest Service

The Citrus longhorned beetle (CLB), Anoplophora chinensis, is a woodboring beetle native to parts of Asia. CLB develops and reproduces within healthy and stressed deciduous hardwood trees, such as maple, horsechestnut, poplar, willow, elm, apple, and oak. Attacked trees will eventually die.

Currently, the citrus longhorned beetle is not known to be established in the United States. It has been intercepted at ports in infested plant material, and was known to escape a nursery in Washington. Quarantines and extensive eradication measures were used to prevent establishment and spread.


Adult beetles of both species would be seen from mid-July to October in Maine. If you think you have seen either beetle during that timeframe, please report it to the Maine Department of Agriculture, Conservation and Forestry... Online, or call: 207-287-3891.

Please use the links on the right to learn more about these exotic longhorned beetles.

 

Updated: August 1, 2019