BioAdvanced Fire Ant Killer Dust kills the queen and destroys the entire colony. The dust starts working immediately, and it is easy to use. The ready-to-use shaker top just needs 2 shakes for most mounds, then a watering in, and you will see fast results to kill fire ants anywhere they are outdoors - lawns, flower beds, ground covers and around trees and shrubs. This low odor formula treats up to 195 mounds.