Description Convenient, easy-to-use shaker can. The waterproof dust won't wash away in the rain and will remain effective up to eight months. Ideal for crack and crevice treatments. Terro Ant Dust can be used both outdoors and indoors. Leaves no unpleasant odor. Kills fire ants on contact. Kills ants, bees, centipedes, cockroaches, crickets, silverfish, slugs, spiders, ticks, wasps and other residential pests. Main Active: 0.05 percent Deltamethrin.Outdoors, apply Terro Ant Dust around windows and doors, porches, screens, eaves, patios, garages, under stairways, in crawl spaces and other areas where pests like to hide. To help prevent indoor invasions, apply Terro Ant Dust thoroughly and uniformly to foundations and crawl spaces where pests are active and may find entrance to your home. To treat fire ant mounds, evenly sprinkle approximately one tablespoon of Terro Ant Dust over the top of each mound. Indoors, apply Terro Ant Dust as a surface, spot, or crack and crevice treatment, to indoor areas where insects crawl and hide.