Easy to use. Simply empty the contents of the lure pouch into the bag, add water to the fill line and hang the trap from a tree or stand it on a surface away from the house or patio ( to avoid attracting wasps to occupied areas). Uses Pheromone technology. Pesticide free. Attracts nearby wasps and yellow jackets and captures them within the bag. Works immediately. Catches the queen in spring before they build nests. Catches foraging workers from summer to fall. Will not catch beneficial honey bees.