Emerald Ash Borer
Date: August 17th, 2010
This Asian beetle, discovered in 2002 in southeastern
Damage is caused by the larvae, which feed in tunnels (called galleries) in the phloem just below the bark. The serpentine galleries disrupt water and nutrient transport, causing branches, and eventually the entire tree, to die. Adult beetles leave distinctive D-shaped exit holes in the outer bark of branches and the trunk.
Adults are roughly 3/8” to 5/8” long with metallic green wing covers and a coppery red or purple abdomen. They may be present from late May through early September, but are most common in June and July.
Additional Resources: http://www.emeraldashborer.info/