This makes it easy to see new activity and keeps the dust inside to kill the larvae. If you must kill the harmless male carpenter bee then use a Wasp and Hornet Aerosol. Cypermethrin insecticide is excellent in controlling a variety of pests including spiders, ants and big roaches. For use in treatment and eradication of carpenter bee nests in walls or buildings. Includes Drione Dust, which is the product we recommend for carpenter bees and carpenter ants.
Desiccant action makes the product last for several months.
Can also be used in cracks and crevices for roaches. A little bit goes a long way. Drione contains silica gel and pyrethrum. Our kit also comes with Viper, a multipurpose insecticide containing Cypermethrin. Treatment with Sniper will prevent carpenterbee drilling in the future.