Winchester Pest Control
Winchester Pest Control

Winchester Pest Control

 Integrated Pest Management

 Telephone - 781-729-1893

Powderpost beetles
 The two most common groups of powderpost beetles are the Anobiid beetles & Lyctid powderpost beetles. Both beetle adults are similar in size from 1/32" to 1/4", and also in color - reddish brown to black. Some differences of these beetles is the age of the wood they infest, the type and moisture content of wood they infest and the insect frass they produce from boring through the wood.

 In both beetle types it is the larvae that do the most damage of boring through the wood. Adult female beetles usually lay their eggs under the bark, on surface splinters, cracks & crevices, and exposed pores of the wood. After hatching the larvae starts to bore directly into the wood and can continue to bore along the wood grain for several months to several years. As they mature into adults, they will bore out of the wood to the surface through their "exit holes" that are round (approx. 1/32" to 1/8") at which time they will actively seek a mate and the process can be repeated. These exit holes can produce a fine powdery frass and can sometimes be used for the female's new egg laying sites. Powderpost beetles are known as wood re-infesting beetles.