Powder Post Beetles in Furniture: Identification and Control

Signs of Infestation

Pin-sized holes in wood with fine, flour-like sawdust beneath indicate powder post beetles—small, brownish, wood-eating insects about ⅛ inch long.

Treatment Challenges

Because finished furniture (stained/varnished) prevents insecticide penetration, gas fumigation is the only effective chemical option—but few companies offer it for single pieces. Freezing (several days in a deep freeze) works if accessible.

Low-Intervention Approach

Entomologist Hal Coleman notes that dry indoor air doesn't support beetle proliferation. They often die out naturally over several months. Unless you have a phobia, monitoring may be the simplest course.