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Carpenter Bees

Do They Cause Damage?

The name comes from the damage carpenter bees cause in the process of building a nest. In the spring, the female selects a location to construct her nest. This is usually on the south or west side and in an area that is protected from the weather such as a soffit, fascia board or the underside of a deck. They will attack any unpainted wood, even pressure treated wood. 

Do I Have An Infestation?

The male carpenter bee (yellow face) can be very territorial and will hover in front of you and also buzz by you in mock aggression. The male does not have a stinger so this is all a show. Females do have the capability to sting but this rarely occurs. A sawdust-like material can also be found below areas where Carpenter Bees are nesting.

What Can Masters Touch Do?

Once nest locations are found, treatments can be applied to eliminate the current Carpenter Bee infestation. Treatments are not a permanent solution and if conducive conditions continue they will return.

How Can You Help?

Carpenter bee problems are relatively easy to take care of. Preventing a reoccurrence is best achieved by applying several coats of paint to the wood they have chosen to attack. Wood preservatives, stains and clear finishes will not deter carpenter bees.

More Information

Once a nest site is selected, the female begins to bore a hole (approximately ½” in diameter) into the wood. When she reaches a depth of about 1” she will turn 90 degrees and continue to bore a tunnel, or gallery several inches deep. After the ‘correct’ depth has been reached, she will begin to provision the closed end of the gallery with a mixture of pollen and regurgitated nectar upon which she will lay a single egg. She then creates a cell by sealing the gallery with a wood pulp mixture. The process is repeated until 5-6 new brood cells are created. After 84-99 days the new brood of Carpenter bees will emerge from the nest.

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