This product may be used on lawns, parks, golf courses, range lands, reforested areas, open fields, meadows and non-crop area. The Revenge Rodent Smoke Bomb is an oxidizing agent which removes oxygen from a tunnel system and suffocates animals. No poison is used and a broad range of pests can be controlled. Kills Rats, Moles, Skunks, Gophers,Woodchucks, Ground Squirrels. Contains 4 Smoke Bombs.