A powderpost beetle is a wood infesting insect that are reddish-brown to black in color. They can chew through wood structures or furniture. They also lay eggs and can live within furniture for up to 5 years before they mature. The largest breeding months are April and July. Homeowners may notice tiny holes in their furniture known as exit holes. These insects are nocturnal, which makes them even more difficult to find.
To treat a powderpost beetle problem, a combination of moisture control and wood preservative treatment should be used. Spot or localized treatments of the infested wood will also sometimes resolve the infestation. However, this only works if the wood itself is not sealed making it impossible to penetrate through varnish, paint or stain. In these situations, the wood must be sanded down to bare wood to allow the treatment to work properly.