Hello! Today I completed your one time service for stinging insects. Upon arrival you showed me the yellow jacket burrow to front right of shed, in front of white fencing. I also found several paper wasp nests inside of gray containers in front of shed. Only 2 paper wasps nest were alive. I applied an aerosol to nests and removed them from containers. You also mentioned wasps nesting under fencing attachments around pool. I treated nesting sites on fence around pool and yellow jacket burrow to backyard with a liquid residual. Please allow 7-10 days for treatment’s best effects. Yellow jackets are still active after 7-10 days, please contact us for another service. Thank you for choosing Green Pest Solutions!