These bug control bags are designed to be used with the Beetle Bagger Japanese Beetle Trap kits. These traps will securely catch Japanese Beetles. The curved, hourglass shape of our disposable bags thwarts thousands of beetles from escaping back into your garden. Our Beetle Bagger replacement bags have perforated holes in the bottom that prevent rainwater from collecting. Using disposable bags will reduce your contact with the beetles. They ll be trapped in the bag and you won t have to touch them.