Good morning. It was good talking with you. Today I completed your one time service for bees. I saw the area where the yellow jackets were entering and exiting in the crack between the stone and the front step near the front entrance. I applied a slow acting non repellent treatment to and around this area. Activity between 2-5 days is normal. If you are still seeing activity after 5 days, give us a call and we will return for another treatment. Please avoid this area until all activity has subsided. If you have any further questions or concerns please contact our office. Thank you for choosing Green Pest Solutions and have a great day.