Combat Max Ant Killing Gel helps you get rid of ants and the colony in just 3 to 5 days. It’s formulated to attract ants quickly, while its fast-acting insecticide, Fipronil, starts to kill ants in hours. Worker ants return to the colony and feed the bait to the larvae and to the queen, killing the entire ant colony. This form-fitting gel is easy to use. Apply it to cracks, crevices and other hard-to-reach places where ants enter the home. Combat Max® Ant Killing Gel is effective against Carpenter, Pharaoh, Argentine, Cornfield, Odorous House, Pavement, White Footed and Little Black Ants.