Emerald ash borer (EAB) has destroyed millions of ash trees and devastated the tree canopy cover throughout portions of North America. EAB was identified in North America in Michigan in 2002, but it likely first arrived in wood cargo crates from Asia as much as a decade earlier.
Here’s how you can manage EAB:
First, you must correctly identify and understand the source of damage. EAB is a metallic, green-colored beetle, about ½-inch long and a 1/8-inch wide.
Look out for these signs of damage on your trees:
Locate where you are on the United States Department of Agriculture Cooperative Emerald Ash Borer Project map and see if EAB is spreading near you.
Employees at the Davey Institute continue studying EAB to better protect trees from this deadly pest. Watch Davey Institute Director of Technical Services, Jim Zwack, talk about EAB and treatment options here:
Cities that are expected to be infected by EAB should have a plan in place. Weigh your options: treatment vs. removal. When planting new trees, plant a variety of species, so any particular pest or disease is less likely to wipe out the entire urban forest canopy.