What Can Homeowners Do To Protect Their Trees From The Emerald Ash Borer?
David Smitley and Deborah McCullough Michigan State University March 19, 2003 Homeowners would like to know if they can treat their ash trees themselves to protect them from the emerald ash borer. Before you hire an arborist, or purchase insecticide to treat your ash trees yourself, make sure that you need to. First, make sure that you have ash trees and not some other type of tree. Only ash trees will be attacked. Second, insecticide treatments are not likely to help dying trees with extensive dieback. Insecticides will probably work best as preventive treatments to healthy ash trees. Finally, there is no need to treat ash trees unless you live in one of the infested counties: Wayne, Oakland, Macomb, Livingston, Washtenaw or Monroe. Protecting ash trees may be a good idea if you live where emerald ash borer adults can fly to your trees. Ash trees within 0.5 to 1.0 miles of a known infestation are at risk next year. If you live anywhere in an infested county, it is likely that emerald
