Tree insect problems

Borer – ash (lilac)

A well-trained arborist can identify and treat the Insect problems below: There are many conditions caused by insects in trees and shrubs. Your Eden Tree Pros' arborist can advise you about prevalent insect infected areas and the course of treatment for each.

1. Ash (lilac) borer

The adult form of this insect is a clear-winged, day-flying moth that resembles a wasp. The adults emerge in August or September and deposit eggs on the bark of the lower trunk. The larvae hatch out, then bore through the bark and feed within the branches and trunk of the tree until the following fall when they emerge as adults.