What commonly indicates a powderpost beetle infestation?

The presence of small "short-hole" openings in wood surfaces is a key indicator of powderpost beetle infestation. These holes are created by adult beetles as they exit the wood after completing their life cycle. The size and shape of these exit holes are characteristic of the type of powderpost beetle, which typically ranges from 1/16 to 1/8 inch in diameter.

When inspecting for powderpost beetles, identifying these small openings allows pest control professionals to confirm the presence of an infestation and assess the extent of the damage. In contrast to other signs, such as glossiness of wood or unpleasant odors—which may pertain to different types of wood damage or pests—these exit holes are specifically associated with the reproductive activity of powderpost beetles.

Although larvae might be present within the wood, they are often hidden from view, making the exit holes a much more visible and telling sign of an active infestation. This highlights the importance of recognizing physical evidence, such as small holes, in pest management effectively.