Emerald Ash Borer

Emerald ash borer (EAB), Agrilus planipennis Fairmaire, is an exotic beetle from Asia that was discovered (in North America) near Detroit, Michigan in the summer of 2002. The adult beetles nibble on ash foliage, causing little damage. However, the larvae (the immature stage) feed on the inner bark of ash trees, disrupting the tree's ability to transport water and nutrients, eventually killing the tree. The emerald ash borer probably arrived in the United States on solid wood packing material carried in cargo ships or airplanes arriving from Asia, and has most likely spread by hitchhiking on firewood transported among homes and recreation areas in at least 25 states. In addition to Missouri, the emerald ash borer has been found in Arkansas, Colorado, Connecticut, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Massachusetts, Michigan, Minnesota, New Hampshire, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Tennessee, Virginia, West Virginia, Wisconsin as well as Ontario and Quebec in Canada. It was discovered in southeast Missouri in July 2008 in Wayne County and in September 2013 Missouri’s quarantine expanded to include all 114 counties and the City of St. Louis.

Since its discovery in the US, EAB has killed trees, created regulatory headaches and cost millions in control measures:

To report a possible Emerald Ash Borer infestation, call the Missouri EAB hotline at (866) 716-9974.

Emerald Ash Borer Program LogoFor information on Emerald Ash Borer in Missouri, or for quarantine questions contact Collin Wamsley, State Entomologist, Missouri Department of Agriculture at (573) 751-5505.

To learn more about the efforts of the Cooperative Missouri Emerald Ash Borer Program, visit our website at www.eab.missouri.edu.

Homeowners, municipalities and others may refer to the Missouri Department of Conservation’s EAB Management Guide.

For additional information on Emerald Ash Borer see the following links:

Missouri Emerald Ash Borer Known Infested Counties Map