Definition
These tiny wood-boring beetles leave evidence everywhere—peppery exit holes and powdery wood dust—and they love hardwood floors. The damage builds slowly but can become serious over time.
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Powder post beetles prefer hardwood with high starch content. Evidence includes round exit holes (1/32 inch diameter), powdery frass, and galleries visible in cross-sections. Infestations develop slowly over years; damage is often not visible until severe. Treatment involves fumigation or heat treatment. Prevention includes moisture control and proper wood storage. Hardwood floors are particularly vulnerable.
Pro Tip
Keep wood moisture levels below 12-15% to prevent infestation. If you find powder post beetles, heat treatment is effective but can be costly.
Example
An inspection of hardwood floors revealed powder post beetle damage—numerous small holes and powdery dust. Treatment involved heat treatment of the affected floor area, followed by refinishing.