Good afternoon. Today I completed your one time service for yellow jackets. You showed me the area by the back door. I observed yellow jackets going in and out of the siding. I applied a liquid treatment to the area. I then walked the rest of the perimeter and saw another yellow jacket nest by the basement window. I treated that nest as well. Please avoid both areas for a few days. The yellow jackets are agitated and will sting. Please allow 10 to 14 days for our products to take effect. Thank you for choosing green pest solutions.