Carpenter Bees

Carpenter Bees closely resemble bumblebees in appearance and size. The top of their abdomen is shiny black and hairless. They rarely sting.


Carpenter Bees make tunnels in wooden structures, which are used for shelter to raise their larvae. They do not feed on the wood, but these tunnels can damage the foundation of the wood if burrows continue year after year. 

Affected structures include decks, posts, beams, siding and rafters. Carpenter Bees prefer unpainted wood.


Carpenter Bees are found throughout the United States. 

Cultural Solutions

  • Paint wood surfaces every year to maintain a seal and discourage tunneling.
  • Close vacant existing holes with putty or caulk to keep Carpenter Bees from returning.