Bayer 10069 Maxforce FC Killer Gel Ant Bait Active Ingredient:Fipronil Target pests:This product controls a broad spectrum of ants: Argentine, Ghost, little black, Odorous House, and Pavement, Honey. Bait will remain effective for up to two weeks. Apply gel in spots in cracks and crevices. For best results, place many spots of dabs of gel where you see ants foraging and entering the structure The gel will stay attractive to ants for up to two weeks. Inspect gel placement and reapply as needed.