Two of the most common types of powder post beetles are the Lyctid (true powder post beetles) and Anobiid (false powder post beetles). The Lyctid type has a narrow, elongated body, and typically feeds off of only hardwoods and hardwood products, including oak, hickory, and ash woods. The Anobiid type has a wider, more rounded body than the Lyctid type, and is known to feed off both hard and soft woods.
Infestations of these beetles typically occur in new wood that already contains the eggs and larvae of developing beetles. And although they rarely found in lumber more than 5 years old, they do make their homes in dried wood and cured lumber. Moist wood also attracts these beetles, so it is important to keep wood dry and in well-ventilated conditions.
Powder post beetles eat away at the wood, leaving behind small holes that compromises the wood’s integrity and defaces its appearance. These holes are round and are where the beetles lay their eggs. You will typically find fine wood dust beneath these holes. Powder post beetles do not cause any health problems in humans, but their damage to wood can cause thousands of dollars in repairs.