What is the size and depth of the holes bored by female carpenter bees?

Female carpenter bees typically bore holes that are about 1/2" wide and can be around 1" deep. This size and depth allow them to create the necessary nesting cavities in wood to lay their eggs and provide a suitable environment for larvae development. The 1/2" width is characteristic of the entrance holes made by these bees, as they prefer to burrow into untreated softwoods or decaying wood, using their strong mandibles. Understanding the specific dimensions of the holes made by carpenter bees is crucial for identification and for implementing effective control measures, especially since these characteristics distinguish them from other wood-boring insects.