Today I completed your one time service for yellow jackets. I inspected all the areas of concern and found yellow jackets going in and out of an entry point by the front door. I applied a liquid residual application to this area. This will help prevent and eliminate the yellow jackets. Allow 10-14 days to see best results. Avoid the treated area for the remainder of the day. Give us a call if any questions or concerns should arise. Thank you for choosing green pest solutions!!!