Carpenter bees pose a threat as they bore holes into sound wood and sometimes decaying wood. While this may not be problematic in a forest setting, it becomes a significant issue when the wood is utilized in constructing structures such as porches, decks, or entire houses. The presence of numerous holes in your porch, for example, is far from an ideal situation.

During late spring or early summer, carpenter bees lay eggs in the holes they drill, making this period critical for effective treatment. Larvae and pupae then develop within sealed cells throughout early summer, leading to adult bees emerging in late summer. These bees subsequently revisit the same tunnels for wintering during the winter months, and this pattern tends to escalate each year.