Are Carpenter Bees Chewing Away at Your Home?
Eating ice cream after a hike through Cuyahoga National Park this past weekend, my nephews were fascinated by a “bumble bee” buzzing around an old barn at the dairy. The solitary bee would seem to “bounce” along the eave, bumping around until it disappeared into a perfectly round hole the size of a nickle. The boys wanted to know if it was making honey inside.
Well, no. Actually, the big, fat yellow and black bee was not a bumble bee, but a carpenter bee. And it wasn’t storing honey, it was tunnelling out a nesting space in the eave. If not stopped, eventually a carpenter bee will chew a series of channels into the eave to build a nest gallery. The channels can damage the structure of the eave, making the wood susceptible to weather damage and rot.
Since they look so much alike, how do you tell the difference between the benign, helpful bumble bee and the destructive carpenter bee?
- Carpenter bees often lack the yellow stripes of bumble bees, appearing to be more black.
- They have a shiny abdomen with a blue-black, green or purple metallic sheen; whereas the abdomen of a bumblebee is completely covered with dense hair.
- Males sometimes have a white face.
- Carpenter bees are solitary so you’ll usually see only one. The female chews out a nest and lays eggs while the male guards the nest, buzzing annoyingly outside the nest opening. The male has no stinger so he can’t hurt you, but his constant buzzing can be very annoying. Females are not usually aggressive, but will sting if provoked.
- Telltale piles of “sawdust” (called frass) outside the nest hole are a dead giveaway, as are the near perfect circles of the nest holes.
- Look for round, nickle-size holes in soft woods like soffits, fascia and wood siding.
If you see signs of carpenter bees, call the pest control experts at Stern Environmental Group. To keep bees from returning season after season and doing more damage, holes must be completely sealed after the bees are removed. Click the post title to find out more about our insect control services. You’ll sleep well tonight when you get “Stern” with your pests.










