Good morning Walter. Today we completed your pest control service for yellow jackets. We treated the yellow jacket entry point at the eve on the rear of the home with liquid residual insecticides. We recommend avoiding this area until live activity ceases, which may take 5 to 7 days. If activity persist 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.