What type of damage do Carpenter Bees typically cause?

Carpenter bees are known to tunnel into wood in order to create nests for laying their eggs. This behavior involves boring into the wood, which can weaken structural elements over time if left untreated. The female carpenter bee excavates the soft wood fibers, forming long, cylindrical tunnels, and this action is primarily motivated by the need to create a safe environment for their offspring.

While they do not eat the wood in the same way that termites do, the damage they cause is significant because it can compromise the integrity of wooden structures, such as fences, eaves, and decks. Over time, the accumulation of these tunnels can lead to more severe damage, as the structural support provided by the wood becomes compromised. Through this nesting activity, carpenter bees can indirectly lead to further issues related to rot and decay if moisture gains access to the damaged wood.

In contrast, the other options do not accurately represent the nature of carpenter bee behavior and their impact on wood. For example, while carpenter bees certainly create holes, the primary focus of their behavior is on tunneling for the purpose of reproduction, rather than eating the material, digging large holes in the ground, or going unnoticed.