What are the characteristics of true powderpost beetles?

True powderpost beetles are known for their ability to infest hardwoods rather than exclusive softwoods, which distinguishes them from other wood-infesting pests. They are often found in new wood products, as they can enter during the drying and milling processes. Their larvae feed on the wood, tunneling through and creating characteristic powdery frass that is a telltale sign of their presence.

While characteristics such as pesticide resistance and moisture requirements apply to certain wood pests, true powderpost beetles particularly thrive in the structural integrity of hardwoods, making option B the accurate choice. This understanding is essential for pest management and control strategies, as identifying the type of wood and conditions that favor infestation can lead to more effective treatments and preventive measures.