Emerald Ash Borer
Emerald ash borer (EAB), Agrilus planipennis Fairmaire, is an exotic beetle that was discovered in southeastern Michigan near Detroit in the summer of 2002. The adult beetles nibble on ash foliage but cause little damage. The larvae (the immature stage) feed on the inner bark of ash trees, disrupting the tree's ability to transport water and nutrients. Emerald ash borer probably arrived in the United States on solid wood packing material carried in cargo ships or airplanes originating in its native Asia. Emerald ash borer is also established in Windsor, Ontario, was found in Ohio in 2003, northern Indiana in 2004, northern Illinois and Maryland in 2006, western Pennsylvania and West Virginia in 2007, Wisconsin, Missouri and Virginia in the summer of 2008, Minnesota, New York, Kentucky in the spring of 2009, Iowa in the spring of 2010, Tennessee in the summer of 2010, Connecticut, Kansas, and Massachusetts in the summer of 2012, New Hampshire in the spring of 2013, North Carolina and Georgia in the summer of 2013, Colorado in the fall of 2013, New Jersey in the spring of 2014, Arkansas in the summer of 2014, Louisiana in the winter of 2015, Texas in the spring of 2016, and Nebraska and Delaware in the summer of 2016. Since its discovery, EAB has:
- Killed hundreds of millions of ash trees in North America.
- Caused regulatory agencies and the USDA to enforce quarantines and fines to prevent potentially infested ash trees, logs or hardwood firewood from moving out of areas where EAB occurs.
- Cost municipalities, property owners, nursery operators and forest products industries hundreds of millions of dollars.
Initial county EAB detections in North America
As of October 1, 2016
Click to enlarge
Changes/additions included since the September 1, 2016 map are as follows: The addition of initial county detections in: Cleveland County, AR; Bartow, Gilmer, Rabun and Union Counties, GA; Iowa County, IA; Atchison County, KS; Breckenridge, Casey and Grayson Counties, KY; Dodge County, MN; Essex and Hunterdon Counties, NJ; Northampton County, PA; Bedford, DeKalb, Lincoln and Van Buren Counties, TN; Grayson and Russell Counties, VA. Added to the list of counties quarantined by their state: Dodge and St. Louis (partial) Counties, MN; Bedford, Cannon, Coffee, DeKalb, Grundy, Lincoln, Moore, Sequatchie, Van Buren & Warren Counties, TN. Additions to the Federal EAB quarantine since the September 1 map: Kent, New Castle and Sussex Counties, DE; Dodge and St. Louis (partial) Counties, MN; Bedford, Cannon, Coffee, DeKalb, Grundy, Lincoln, Moore, Sequatchie, Van Buren & Warren Counties, TN.
Head back to school to learn the latest about what is being done to address emerald ash borer and other invasive species in North America.
Characteristics of Trees Used to Replacement Ash
Bob Schutzki, Michigan State University
Tuesday, November 8, 2016 at 11:00am ET