Ready-to-use, granular Over 'n Out! Advanced Fire Ant Killer fights fire ants in two ways. As a broadcast treatment, it kills on contact and protects against new invasions for up to six months. As a mound treatment, it kills the mound in 15 minutes and the queen within 24 hours. Apply during the morning or early evening when it is cool and fire ants are most active. While early spring is the best time to treat, you can apply the product anytime during the year if you notice the presence of fire ants in your yard. The granular product is easy and quick to apply. Optimize control by combining targeted mound treatments for existing, visible mounds with broadcast treatment. For outdoor, residential use only. Read the product label and follow application instructions thoroughly.