Emerald Ash Borer Signs and Symptoms

Adult EAB (D. Cappaert, MSU)


EAB D-shaped exit hole. (D.R. McKay, USDA APHIS PPQ)


Ash bark splitting due to EAB galleries. (PA DCNR)


Ash canopy dieback. (J. O'Brien, USDA Forest Service)


Epicormic sprouting. (PA DCNR)


Ash bark scaling due to increased woodpecker activity. (A. Wagner, USDA APHIS PPQ)

MSU Extension Publication - Signs and Symptoms of the Emerald Ash Borer