Symptoms of Attack by Emerald Ash Borer
photo: David Roberts, MSU
3. The canopy continues to
decline until the tree eventually
photo: R. Anderson, USDA FS
4. Woodpecker activity is an 'early
warning sign' of emerald ash borers.
photo: R. Rabaglia, MDA
5. Emerging adults leave tell-tale D-shaped exit holes behind tree bark
Signs of EAB include eaten leaves, as above.