Natural Guard Crawling Insect Control Containing Diatomaceous Earth is a natural way to control insects. Natural contact insecticide causes cuts on the bugs resulting in dehydration. Use a hand duster to apply a light coating where crawling insects are found. May be used indoors to control ants, roaches and other crawling bugs. May be used outdoor for crawling bugs or slugs around hosta. Wear a filter mask when applying. Breathing dust during application can be harmful. 4 Lb.