Emerald Ash Borer (EAB) is a small (1/2” long, 1/8” wide) metallic green
beetle. It is an invasive species and infestation is highly
destructive to ash trees.
The EAB travels by the movement of firewood and nursery stock. The adult
beetle can fly up to a half mile under its own power.
The Adult EAB emerges
May-July and the female lays numerous eggs in bark crevices and between layers
of bark. The eggs hatch into larvae in 7-10 days which bore into the tree where
they chew the inner bark creating winding galleries in the vascular tissue
of the tree as they feed. This action cuts off the flow of water and nutrients
in the tree, causing dieback and death of the tree.