Signs and Symptoms of Emerald Ash Borer (EAB)
Ash Identification | EAB Identification | Return to EAB Main
The following signs and symptoms are general, but may indicate an EAB infestation: "D-shaped" adult exit holes 3-4 mm wide on the bark (A), vertical splits in the bark (B), crown and branch dieback (C, D), Epicormic sprouting on the trunk (E), woodpecker damage (F), and sparse or discolored foliage.
A
| B
|
Photo: Deborah McCullough, | Photo: James Smith, |
C
| D
|
Photo: James Smith, | Photo: David Cappaert, |
E
| F
|
Photo: David Roberts, | Photo: David Cappaert, |
Reference: McCullough, D.G. and S.A. Katovich. 2004. Pest Alert: Emerald Ash Borer. NA-PR-02-04. USDA For. Serv., St. and Priv. For., NE Area, Newtown Square, PA
