There are two common groups of wood-boring insects:

There are two common groups of wood-boring insects:

• A. Beetles and moths
• B. Beetles and termites
• C. Beetles and bees
• D. Moths and wasps

Answer: (A)

Wood-boring damage is driven by the larvae of insects that live inside and tunnel through the wood. The two groups you’ll most often hear about as wood-borers are beetles and moths. Beetle larvae, like those of powderpost or furniture beetles, bore into wood and leave tiny exit holes and a fine, powdery frass as evidence. Moth larvae, including carpenter moths, also bore into wood, creating galleries that can weaken timber and produce similar frass. This pairing is a common way to categorize wood-damaging pests because these two groups account for most of the wood damage seen in wooden structures and products. The other insects listed don’t represent the same two major wood-boring groups in typical pest discussions: termites cause wood damage in a different way, and bees or wasps don’t usually bore into structural wood as a primary habit.

Wood-boring damage is driven by the larvae of insects that live inside and tunnel through the wood. The two groups you’ll most often hear about as wood-borers are beetles and moths. Beetle larvae, like those of powderpost or furniture beetles, bore into wood and leave tiny exit holes and a fine, powdery frass as evidence. Moth larvae, including carpenter moths, also bore into wood, creating galleries that can weaken timber and produce similar frass. This pairing is a common way to categorize wood-damaging pests because these two groups account for most of the wood damage seen in wooden structures and products. The other insects listed don’t represent the same two major wood-boring groups in typical pest discussions: termites cause wood damage in a different way, and bees or wasps don’t usually bore into structural wood as a primary habit.