100% Diatomaceous Earth, Insect Dust is like crawling over broken glass to insects. Use indoors or out, around the foundation of your home as a barrier, on vegetable plants, ornamentals, houseplants, on roaches, slugs, ants, earwigs, grasshoppers, crickets, silverfish, millipedes, centipedes, sow bugs, pill bugs, lice, mites, box elder bugs and carpet beetles. Insect Dust is also effective against fleas, ticks, aphids, snails, and Japanese beetles. For use in cracks and crevices, bedding, carpet, or anywhere else crawling insects are found. Call the manufacturer to inquire about commercial applications such as hotels and apartments or agricultural uses such as grain storage, poultry and other livestock, and crops.