Protect your lawn from fire ants with Ortho Fire Ant Killer Broadcast Granules. It kills fire ant mounds in 15 minutes and protects your lawn for up to 6 months. Don't treat just the infested areas where mounds are visible, treat your entire lawn to control reinfestation of fire ants from neighboring areas. For best results apply with a Scotts spreader when ants are most active (morning or late evening), and when temperatures are between 65 and 80 Deg F. Water in after application. Covers 5000 Sq. Ft. of residential lawn space.