Carpenter bees prefer to create their nesting areas in softwood that has not been painted, stained or treated in any way, but if need be, they may attack painted or stained wood as well. Common places that carpenter bees can be found building their nesting in are decks, porches, roof eaves, wood play structures, sheds, and wooden lawn furniture. It is important to note that carpenter bees do not eat the wood they are invading, they just tunnel through the wood removing the debris which then builds up in a pile outside of the entry hole.
Carpenter bees tend to either use the same galleries year after year or create new galleries in the same area year after year. This can lead to increased damage and can weaken the structural integrity of the place that they have invaded.
Female carpenter bees do have a stinger, but are not very aggressive and will rarely sting. Their venom is however potent enough to cause an allergic reaction in some people. Male carpenter bees are very aggressive and will defend their nesting sites by buzzing around and flying aggressively at the person or animals that they perceive as a threat. However, their “bark” is bigger than their “bite” since the males do not have a stinger.