Precor Plus Fogger is the ideal insect growth regulator for flea control as it prevents infestations for up to seven months. Procor Plus Fogger is designed for indoor use, treats large spaces and is well-suited for professional flea control in hard-to-treat areas. Precor Plus Fogger features dual active ingredients, the insect growth regulator (IGR) (S)-methoprene, which prevents pre-adult fleas from creating new infestations, and permethrin, which controls adult fleas and their hatching eggs. Controlled pest: fleas Use on: indoor and outdoor areas