Concern(r) diatomaceous earth crawling insect killer harnesses the power of diatomaceous earth (85%). Made from the finely ground fossils of prehistoric fresh water diatoms, this all natural product kills cockroaches, ants, silverfish, fleas and slugs. A long lasting control, it sprinkles into cracks and crevices where bugs hide. Insects cannot develop resistance as there is no build-up of chemical immunity. Insects die within 48 hours of contact. This product is one of the most economical and convenient on the market!(FONT color=red size=2>NOT FOR SALE IN: DC