WHAT IS THE EMERALD BORER?
The Emerald Ash Borer (Agrilus planipennis) is a wood-boring beetle native to Asia. Emerald Ash Borer (EAB) adults are slender, often bright, metallic green bronze beetle, 11-13 mm long.
Emerald Ash Borer injury includes dieback that begins in the upper portion of the tree’s canopy. The bark seems to yellow in areas along the trunk where larvae are present between the bark and the wood, and D-shaped exit holes in the bark are created by emerging adults.
Treatment Timing and Prevention
Soil-applied systemic insecticides, as well as trunk injections for the larger trees, have been shown to greatly reduce injury and protect the tree(s) from this pest.