Total Mite Kill powder is a natural, non-toxic mite control powder that can be applied directly onto all types of birds & poultry. Containing Silica Shelled Fossilised Diatoms, its killing action works mechanically on the surface of the pests, breaking down their waxy protective coating, causing them to dehydrate & die. Kills & is effective against the following mite species & insects: Red mites Delumping mites Northern mites Cyst mites mites Spider mites Cockroaches Ants Silverfish Termites