For active wood-boring beetle infestations, several spot treatments are possible. These include controlling wood moisture, using surface covers, mechanical removal, freezing, and insecticide treatments.
Moisture problems are most commonly found in the lumber in crawl spaces. A crawl space should be well ventilated and, in many cases, should have a vapor barrier. Generally, plastic sheets (4 mil polyethylene) covering 70 percent of the crawl space will keep the lumber from getting too moist. Surface cover, including paint, polyurethane, and water sealants, will protect wood from moisture problems and help prevent wood-boring beetles from penetrating the wood.