Prevent ants from making their way into your home with Amdro Ant Block Ant Killer 24oz. While surrounding your home with a band of protection, the dual-action bait works to destroy mounds in your lawn and landscape for up to 3 months. If ants have already found their way into your home, place Amdro Kills Ants Indoor/Outdoor Ant Bait Stations 4-count beside their trails for immediate control and year-round protection. Once the ants bring the bait to the queen, the colony is destroyed.