Use this trap with pheromone lures for adult Lepidoptera pests (moths) that produce larvae (caterpillars). This trap can be re-used for several seasons with replaceable Messyless Adhesive™ Liners (PIT086). Liners are easily slid in and out of the floor of the trap. When a Liner becomes saturated with insects, simply replace it with a fresh Liner as many times as necessary over the life of the trap. Lures that are still active may be removed from one Liner and repositioned on another Liner. Plastic delta traps are made from a bio-degradable plastic. They can be stored flat when not in use. Delta traps capture moths so they cannot mate. This may help reduce the population of a specific species, known as reducing pest pressure. Hang traps early enough to capture male moths before they can mate. For many species, keep traps deployed throughout the season to capture each generation.