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If you have more than a couple of mounds in your yard I would definitely recommend calling in a pro. They can use stronger (but short-lived) stuff than the average homeowner has access to. Last time I needed mounds exterminated, the guy used a pressure sprayer with a spike, which goes down into the depths of the nest and floods the entire mound with a concentrated insecticide. Quick, extremely effective, and the agent (a pyrethroid blend) was safe to be around in a day or two and effectively gone in a week. –  KeithS Aug 24 at 22:25



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Boiling water is safe and works well.

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Bayer make a terrific product called Top Choice. It is a one time application for year long Fire Ant control. It is a restricted use product so you licensed pest control professional will have to apply it if it is allowed on the label for your area. Spread rate is 84 lbs. per acre and may run around $300.00 an acre. Rate is 2 lbs. per 1,000 sq. ft. Re-Entry time is after application, but check the label. The label is the law!

The best time of year for an application is when daytime temps are around 75 degrees. First, it will kill fleas and ticks for the first month it's on the ground. And this is a peak time for fleas and tick activity. Secondly, it will be at its peak performance during the late spring when Fire Ant activty is peaking also with the spring rains. But, it can be applied anytime of year and will need watering to activate.

It should be noted that Fire Ants may still trail into your yard from surrounding areas. If they try to establish a mound in your yard, they will all die in about 3 days. It's not perfect, but I have been applying it for 6 years.

We applied it to a cities 34 acres of park lands due to heavy fire ant activity. The next year we only found 6 Fire Ant mounds. Best product I have used on Fire Ants in 23 years.

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