Today I completed your one time service for Yellowjackets. It was nice to meet you today. After an inspection you do indeed had Yellowjackets nesting in your wall in the rear of home. I treated the entry point with a liquid residual application. Please stay away from this area the rest of the day for the Yellowjackets will be agitated. And over the next 3-7 days you’ll see a decrease in activity. After 2 weeks you shouldn’t see any activity at all. If you do or have any questions or concerns please contact our office. Thank you for choosing Green Pest Solutions and have a great day.