What is the primary wood product that is affected by powderpost beetles?

The primary wood product affected by powderpost beetles is hardwood flooring. Powderpost beetles are known for targeting hardwood products, particularly those with a high starch content. They thrive in the dense, hard fibers of hardwoods, where they lay their eggs. When the larvae hatch, they tunnel through the wood, creating small exit holes and causing structural damage.

Hardwood flooring is often made from types of wood that are particularly susceptible to these pests, including oak and walnut. The damage caused by powderpost beetles can significantly affect the integrity of the flooring, leading to costly repairs or replacements.

While plywood, softwood lumber, and particle board may experience infestations from other wood-destroying insects, they are not the primary target of powderpost beetles like hardwood flooring is. This distinction makes hardwood flooring the correct answer in identifying what product is most significantly affected by powderpost beetles.