Hello it was nice speaking with you today. I completed your initial service. I found where the yellow jackets were entering from the outside, so I used painters tape to seal the crawl space door where they seemed to be breaching. I then Applied a liquid residual to the entry point on the exterior of the home. I inspected around the outside of the home and found no other issues. I also applied a separate liquid treatment to the perimeter foundation of the home targeting ants and other general pests. Please allow 5 to 7 days for the yellow jacket treatment to take effect. If activity remains after this period, please call for another treatment. Have a great day and thanks for choosing Green Pest Solutions.