Made from fresh water diatomaceous earth, Last Crawl kills household and garden insects without the addition of any chemical additives. It’s perfectly safe for humans, animals, fish and food and can be used outdoors and indoors. Controls Earwigs, Ants, Cockroaches, Spiders, Beetles, Silverfish, Bedbugs, Crickets, Wasps, Fleas, Grain insects, Lily Beetles and Slugs. %100 Silicon Dioxide.