Emerald Ash Borer

Emerald Ash Borer (EAB) was confirmed in several counties throughout central WI in the past couple of years. EAB is a devastating pest that is causing most ash trees to die, similar to the caliber of Dutch Elm Disease of the 1970’s-1980’s. The first signs of EAB are woodpecker damage in the upper canopy of the tree, followed by tip dieback in the crown. Look for bark “blonding” to occur, which occurs from the woodpeckers looking for the EAB larva. As the tree health declines, you’ll begin to see epicormic sprouting and cracks throughout the tree. At this point, the odds of your tree living are slim to none. One option to preserve your tree is trunk injection, Arborjet has introduced the Tree I.V method. Holes are drilled into the base of the tree and the chemical TREE-äge® is uptaken through transpiration. The best time for the injection is spring time!