What size are the exit holes made by Lyctid beetles?

The exit holes made by Lyctid beetles are typically very small, ranging from 1/32" to 1/16". This size is characteristic of the damage caused by these pests, which primarily infest seasoned hardwoods, such as oak and ash, and are known to create these pin-sized exit holes as they emerge from the wood after completing their life cycle.

The small size of the exit holes is significant because it helps in the identification of the insect's activity. Early detection of these holes can indicate an infestation before more extensive damage occurs. Understanding the specific size range is crucial for pest control operators to differentiate between damage caused by Lyctid beetles and other wood-boring insects, which might create larger exit holes.