Control bed bugs, fleas and other crawling insects without the use of dangerous chemicals! Last Crawl Bed Bug and Flea DE-stroyer is an insecticide composed of diatomaceous earth and calcium montmorillonite. This unique blend comes from a Canadian fresh water DE deposit that is one of only two of its kind in the world! This calcium montmorillonite enhancement creates a brown powder that effectively eliminates crawling insects by lacerating their waxy exoskeletons. Due to this physical form of action, pests are not able to develop a resistance to Last Crawl, unlike with chemical insecticides. Simply dust all surfaces behind appliances, cabinets, along baseboards, along edges and underneath carpets and rugs, bed frames, with careful attention given to cracks, crevices and other places where insects hide or crawl and protect your family and pets from bed bugs, fleas and other crawling insects. Please refer to and follow directions on label when applying.