Good morning it was a pleasure speaking with you today. I completed it one time bee service. He reported wasps that were on the back porch going into a wooded area on a crossbeam that is above head level. I treated the area and a little bit more than just the area that the yellow jackets were going into. This will help kill and control the yellow jackets. Allows seven days for the best results. If you have any activity after this time, please call the office for a free service call thank you for choosing Green Pest solutions and have a wonderful day.