Good afternoon Mario. Today we completed your pest control service for yellow jackets. We treated the three entry points, one at the soffit area on the corner of the home and the two around the windows, with a liquid residual insecticide. Please allow 7 to 10 days for these treatment methods to reach their maximum effectiveness. If activity persists after that timeframe, please don’t hesitate to contact our office. Thank you for choosing Green Pest solutions and have a wonderful day.