Within the tunnel the female stores food and lays eggs. The developing carpenter bee larvae are in individual cells in the tunnel. There is usually only one generation per year. Control of these insects can be achieved by spraying the entrance hole with an aerosol insecticide. Existing holes can be plugged with a moth ball to prevent adults from returning or the second generation adults from emerging.
Females are quite docile, although they can sting.
Males are aggressive, but cannot sting.