Good afternoon, today I was here and completed your one time service call for yellow jacks in a ground nest in the back yard. After speaking with you and figuring out the proper address I arrived and checked around the location where you mentioned activity. There was an obvious nest, and a direct entry point where they were entering and exiting the nest. I then applied a liquid treatment directly into the entry point as well as directly onto a handful of yellow jackets trying to fly away. Please allow 10-14 days in order to see any decrease in pest activity. Thank you once again for choosing green pest solutions.