Standard yellow strips attract insects such as Aphids, Corn rootworm, Fungus Gnat, Mushroom Flies, Thrips, Whiteflies, and certain leafminers. Can also be hung in fruit trees with Ammonia Superchargers (GL/TR-3704 or GL/GL-3000-10) to trap Rhagoletis spp.: Apple Maggot, Blueberry Maggot, Cherry Fruit Fly, and Walnut Husk Fly.