• Kills ants at the source.• Preferred food form for ants.• Works within hours and up to 1 month.• Effective against Argentine, Carpenter, Cornfield, Pharaoh, White Footed, Odorous House, Pavement and Little Black Ants. How Combat® Max™ Ant Killing Gel Works:This product provides FAST CONTROL of ants in 3–5 days. This product is formulated to effectively control ants. That's because this products contains Fibronil, a fast-acting active ingredient. Its speed is still slow enough, however, for foraging ants to return to the colony and feed the bait to larvae and queen(s) so that the entire colony is killed through the Domino Effect™. Kills the Colony Indoor & Outdoor Use