Kills the queen - kills the colony. For indoor and outdoor use. Starts killing worker ants in 24 hours. Uses 4 food sources to kill listed ants. Kills ants, including acrobat, Allegheny, argentine, big-headed, cornfield, crazy, ghost, little black, odorous house, pavement, pharaoh, pyramid, thief & white-footed ants (excludes fire, carpenter & harvester ants). Guaranteed to kill the colony or your money back. Made in the USA.