10 Best Fire Ant Killing 2026 in the United States

Terro Liquid Ant Killer Bait Stations use borax (Sodium Tetraborate Decahydrate) as the active ingredient in a liquid bait form. This bait is designed to attract a variety of common household ants, including those that prefer sweets. The liquid formulation allows worker ants to carry the poison back to their colony, targeting not just the ants you see but also the hidden ones, which helps in controlling the entire nest. These bait stations are easy to use indoors, requiring no setup—just place them along baseboards, corners, or counters where ants are active. Users often notice a reduction in ant activity within a few days.

Borax is generally considered low-risk around pets and children when used as directed, but it’s still wise to place the baits out of reach. These bait stations are primarily designed for indoor use and may not be as effective if you’re dealing with a large outdoor fire ant mound. While it works on sweet-eating ants, it might be less attractive to ants not drawn to sugary baits. For those seeking a straightforward, ready-to-use solution for typical indoor ant problems, Terro’s liquid bait stations provide an effective and convenient option.

The Ortho Orthene Fire Ant Killer Broadcast Granules offer a solid option for homeowners wanting to control fire ants over a large area. Its main strength lies in providing up to six months of protection, which helps prevent new fire ant mounds from forming, especially when you treat your entire lawn. It’s designed for broadcast application using a lawn spreader, covering up to 5,650 square feet per 13-pound bag, making it convenient for broad treatment rather than spot targeting.

The product is part of a two-step system, where this granule treatment (Step 2) complements mound-specific treatments to ensure existing colonies and queens are eliminated. It is intended for outdoor use only, and users should follow safety instructions carefully during and shortly after application. This product serves as a relatively easy-to-use solution with lasting effects for your lawn and is best used in combination with mound-specific products for optimal results.

The Ortho Fire Ant Killer Broadcast Granules are designed to protect lawns from fire ants by targeting fly-in queens to prevent new mounds from forming. The granule formulation is easy to apply using a spreader and requires watering in, which fits well for homeowners looking for a straightforward lawn treatment. One of its biggest benefits is fast action—killing mounds within 15 minutes—and providing up to 6 months of protection across a large area (5,000 sq. ft.) with just one 11.5 lb. bag.

This product works best as part of a two-step system where an initial mound treatment (using a different Ortho product) is recommended to destroy existing colonies. This means it might not be the sole solution if you already have many active fire ant mounds. The granule form is generally safer for outdoor use around pets and children compared to liquid sprays, but it's always important to follow label instructions closely for safety. If you want a long-lasting, easy-to-use broadcast treatment that keeps fire ants at bay after initial mound control, this is a solid choice. Just keep in mind it won’t replace direct mound treatment for existing infestations.