Broad-necked Root Borer

Deciduous forests and woodlands throughout the eastern United States and Canada; often found near oak, chestnut, and fruit trees.

Larvae feed on the roots of various trees and shrubs including oak, maple, and apple; adults are thought to feed very little, possibly on foliage or not at all.

The insect has a multi-year life cycle (3-4 years) spent mostly underground as larvae; adults are nocturnal, attracted to lights, and are typically active from June to August.

Larvae can be pests of fruit trees and ornamental shrubs by damaging root systems; however, they benefit the ecosystem by breaking down wood and serving as food for birds and small mammals.