Kills fire ant workers within hours. For outdoor home use only. Destroys the mound. Kills the queen. No watering-in. Fire ant workers track the powder deep into the mound where it also kills the queens, destroying the mound. Colonies are destroyed within 3 to 7 days. Product Facts (1 tablespoon (tbs) = 3 teaspoons (tsp)): Kills Insects: fire ants; red harvester ants. Where to Use: On home lawns; around ornamental plants (including flowers, shrubs & trees). Amount to Use: Fire ant and red harvester ant mounds - 1 tablespoon per mound. Made in USA.