Good afternoon. Today I completed your one time service call for carpenter bee activity. Today I used a liquid residual product on the exterior backyard shed, and backyard patio eaves/soffit area. Please allow this liquid residual product 7-10 days for product to start working to see best results. This liquid product will leave an invisible band that the pests do not know is there, they cross over, pick up the chemical on their sticky appendages(legs) and possibly transfer the chemical back to each other, eventually it will catch up to the pests and kill them. If you should have any questions or concerns please call us. Thank you for choosing Green Pest Solutions.P.S. Signature and credit card are on file.