Good afternoon I completed your service today. I located where the yellow jackets are entering. They are flying into the eave by the back door. I came inside and saw that you had already blocked up the breach hole in the kitchen. Please keep this hole covered until the yellow jackets are gone. I then went outside and treated the area with a liquid residual for stinging insects. Please allow at least a week for the treatments full effect. If you have any questions or concerns, please call the office. Thank you for choosing Green pest solutions.