Directions for Use: shake can well before using. Can be used with or without the extension tube. Note: If inserting the extension tube, point the actuator button away from the face. For Control of Wasps, Bees, Hornets & Yell ow Jackets. From a distance of 2 to 2.5 metres (6–8 feet), with the wind coming from behind, point actuator button with or without the extension tube in the direction of the insect nest. Depress nozzle, and continue spraying until the opening of the nest is completely covered with the insecticide foam. Because the insects will now be unable to leave the nest, insert the extension tube into the nest opening and fill the nest space (or void where nest is located) with the insecticide foam. If the nest is accessible, allow sufficient time for insects to become inactive before destroying the nest. Application to nests should be made in late evening or early morning when insects are at rest.