Amdro Kills Fire Ants - fire ant bait comes in a shaker bag of easy-to-use granules. Amdro is probably the most popular product for use against fire ants. It is a bait - little yellow bits of food for fire ants that you can either put near the mound or "broadcast" around your yard to prevent them entirely. Fire ant workers who are out foraging for food will grab it, bring it back to the nest, and distribute it around, thereby killing, sterilizing, and preventing the rebound of the fire ant colony. Use for both quickly eliminating the colony and for season long control.