Emerald Ash Borer
*Established in Michigan's Lower Peninsula, Detected in Michigan's Upper Peninsula*
PROHIBITED IN MICHIGAN
Visit the Michigan Department of Agriculture and Rural Development's Emerald Ash Borer webpage for more information.
- Bright, metallic green with purple abdominal segments under its wing covers
- Length of adult beetle is approximately ½ inch
- Can fit on the head of a penny
- Larva are worm-like
- Create D-shaped exit hole in the tree
David Cappaert Michigan State University Bugwood.org - Emerald Ash Borer close-up
David R McKay USDA APHIS PPQ Bugwood.org - exit hole left by an Emerald Ash Borer
David Cappaert Michigan State University Bugwood.org - larvae stage of the Emerald Ash Borer
Habitat: Urban, suburban, and rural forests
Diet: Adults feed on the foliage of ash trees, while the larvae tunnel and feed on the underside of the bark and cut off the transportation of nutrients and water to the tree.
Native Range: Eastern Russia, Japan, Northern China, and Korea
Local Concern: Since the first discovery in Michigan in 2002, this invasive beetle has killed tens of millions of ash trees in Michigan, both in forests and in neighborhoods. Adults typically only fly about ½ mile. On their own, this species doesn’t spread very far. The real concern with spread is the relocation of infested firewood to non-infested areas. Don’t move firewood!
Means of Introduction: The emerald ash borer most likely arrived in the United States via solid wood packing materials arriving from Asia.
For more information about the Emerald Ash Borer, please visit www.michigan.gov/EAB.