Good afternoon Clara and sorry we missed you. Today we completed your service call for yellow jackets. We treated the entry point in the soffit/eaves area on the rear of the home with a liquid residual insecticide. Please allow this treatment 7 to 10 days to reach its maximum effectiveness. If activity persists after that timeframe, or you have any questions/concerns, please don’t hesitate to contact our office. Thank you for choosing Green Pest solutions and have a wonderful day.