Good afternoon. Today I completed your quarterly pest control service. Per customer request, I used an interior liquid residual product and spot treated the interior floorboard perimeter of the kitchen and upstairs bathroom. I then used another liquid residual product on the exterior perimeter foundation of the house. Please allow both liquid residual products 7-10 days for products to start working and then in that time frame and thereafter you should start to see a decrease in carpenter ant/pest activity. These liquid products will leave an invisible band that the pests do not know is there, they cross over, pick up the chemical on their sticky appendages(legs) and possibly transfer the chemical back to each other, eventually it will catch up to the pests and kill them. If you have any questions or concerns please call us. Thank you for choosing Green Pest Solutions.