COMBAT Source Kill Max Formula for Small Roaches is the #1 roach bait in America. The baits are formulated with food that specifically attracts German roaches and other small roaches, plus a powerful insecticide, Fipronil, which starts killing within hours.
Fipronil. Fipronil is an insecticide of the phenylpyrazoles class and an active ingredient of one of the popular ectoparasiticide veterinary products, Frontline. … The USEPA has determined fipronil to be safe for use on dogs and cats, with no harm to humans who handle these pets.