Fire ants can quickly turn a lush lawn into a dangerous and unsightly mess, but the right treatment can stop them in their tracks.
Whether you’re dealing with a few mounds or a full-blown infestation, choosing the best fire ant killer for your lawn is essential for long-lasting control and peace of mind.
In this guide, we’ve reviewed the 10 best lawn fire ant killers of 2025, including fast-acting granules, eco-friendly options, and heavy-duty solutions.
From trusted brands like Ortho, BioAdvanced, and Amdro, these products help eliminate fire ants at the source and keep your yard safe for family and pets.
1. Ortho Fire Ant Killer
Ortho Fire Ant Killer Broadcast Granules provide fast and effective fire ant control for your lawn.
This granular formula kills fire ant mounds within 15 minutes and offers long-lasting protection for up to six months, preventing new mounds from forming and eliminating fly-in queens.
Containing bifenthrin as the active ingredient, it disrupts the ants’ nervous system for powerful control.
Easy to use, simply broadcast the granules evenly over your lawn and water immediately for optimal results.
The product covers up to 5,000 square feet per 11.5 lb bag, making it ideal for large outdoor areas.
For best effectiveness, apply during cooler parts of the day, such as morning or late evening, when ants are most active.
Once the treated area dries, it is safe for people and pets to re-enter. This solution is designed to protect your entire lawn from fire ant reinfestation with just one treatment.
2. BioAdvanced 24 Hour Lawn Insect & Fire Ant Killer
BioAdvanced 24 Hour Lawn Insect Killer is a fast-acting, ready-to-spray formula designed to kill over 500 types of lawn insects, including ants, fleas, mosquitoes, ticks (even those that may transmit Lyme disease), chinch bugs, and mole crickets.
It delivers visible results within 24 hours, effectively controlling surface insects while providing protection against soil insects for up to three months.
This product treats up to 5,334 square feet and is safe for use on vegetables, lawns, flower beds, and around trees and shrubs when used as directed.
Its versatile formula helps maintain a healthy outdoor environment by targeting pests above and below ground. Pets can safely re-enter treated areas once dry.
The concentrate form allows for easy mixing and application, making it a convenient solution for comprehensive lawn pest control throughout the spring, summer, and fall seasons.
3. TERRO T901-6 Ant Killer Plus Multi-Purpose Insect Control for Outdoors – Kills Fire Ants
TERRO T901-6 Ant Killer Plus is a fast-acting outdoor insecticide granule designed to eliminate ants, fire ants, cockroaches, fleas, and other crawling insects within 24 hours.
It can be used as a perimeter treatment around house foundations, on lawns, or as a spot treatment on ant hills and fire ant mounds.
The granules contain lambda-cyhalothrin, a powerful active ingredient that kills insects on contact and provides residual control to keep pests away for an extended period.
The product comes in a convenient resealable shaker bag, allowing easy application without the need for a spreader.
For best results, apply a 3 to 10-foot band of granules around your foundation and water lightly immediately after treatment.
It is intended for outdoor use only and helps protect your home by preventing insect infestations from spreading indoors.
4. Amdro Fire Ant Killer for Lawns
Amdro Fire Ant Yard Treatment (5 lb) is a powerful solution designed to control and eliminate fire ants from your yard.
This granular bait attracts foraging ants, which then carry it back to the colony, ensuring the queen and the entire nest are targeted.
The treatment starts killing ants immediately upon application, with the queen typically eliminated within about one week, leading to the destruction of visible mounds and long-term colony control.
Amdro is effective for large outdoor areas and works by disrupting the ant colony at its source, preventing future infestations.
Simply apply the granules evenly across your yard for comprehensive coverage. Safe for use as directed, Amdro offers a reliable, commercial-grade solution for homeowners seeking to protect their lawns and outdoor spaces from persistent fire ant problems.
5. Spectracide Fire Ant Shield Mound Destroyer
Spectracide Fire Ant Shield Mound Destroyer Granules (3.5 lb) is a fast-acting formula designed to eliminate fire ant mounds by killing the queen and entire colony within 24 hours.
Utilizing exclusive Accelerator II technology, it speeds the release of the active ingredient, Lambda-Cyhalothrin (0.04%), ensuring rapid penetration and effectiveness.
The granules are applied directly over and around the mound, then gently watered in to activate the product without disturbing the ants.
This treatment limits new mound formation and can be used as a spot or crack-and-crevice treatment on lawns, gardens, sidewalks, driveways, patios, porches, and structural surfaces like windows and doors. For best results, apply during morning or evening when ants are near the surface.
The product is safe for pets and children once dry and watered in, but it is toxic to aquatic life, so precautions should be taken to avoid runoff into water sources. Packaged in a resealable bag for convenient storage and use.
6. BioAdvanced Fire Ant Killer
BioAdvanced Fire Ant Killer Dust is a fast-acting, ready-to-use insecticide designed to eliminate fire ants, pavement ants, and red harvester ants by killing the queen and the entire colony within three days.
Containing 0.5% beta-cyfluthrin as the active ingredient, this low-odor dust sticks to ants’ bodies, allowing worker ants to carry it deep into the mound for effective colony control.
The product is easy to apply with a shaker top, requiring about 1 teaspoon per mound (2 shakes), and treats up to 130 mounds per 1-pound container.
Suitable for use in lawns, flower beds, ground covers, and around trees and shrubs, it is safe for children and pets when used according to label directions.
For best results, apply during calm weather and follow with a light watering to help the dust penetrate the mound.
BioAdvanced Fire Ant Killer provides a reliable solution to protect outdoor spaces from fire ant infestations.
7. Sunday Ant Adios – Bug & Ant Killer
Sunday Ant Adios Insect & Ant Killer is a 2-pound granular outdoor treatment formulated with Spinosad, a biologically derived soil bacterium that effectively targets and eliminates ants, earwigs, cutworms, sowbugs, pillbugs, crickets, and other common garden pests.
This OMRI-listed product is approved for organic gardening and safe for use around vegetables, fruit trees, and ornamentals, making it ideal for environmentally conscious pest control.
It provides up to four weeks of continuous insect control and can be applied as a mound treatment, lawn broadcast, or perimeter barrier around homes and gardens.
The granules work by attracting foraging insects, which then carry the bait back to their colonies, disrupting the entire population.
Sunday Ant Adios is designed for easy application and biodegrades naturally, offering a pet- and family-friendly solution for maintaining pest-free outdoor spaces.
Coverage extends up to 4,000 square feet per application, with reapplication recommended every 2-4 weeks or after rain.
8. Surrender Fire Ant Killer
Martin’s Surrender Fire Ant Killer is a powerful insecticide dust formulated with 75% Acephate, designed for effective control of fire ants and harvester ants.
This ready-to-use product works by paralyzing ants upon contact or ingestion, disrupting their nervous system and leading to colony elimination within 48 hours.
One container treats up to 108 fire ant mounds, making it an economical and efficient solution for residential lawns, recreational areas, golf courses, and other non-crop outdoor sites.
Application is simple, just sprinkle 1 to 2 teaspoons of dust evenly over each dry mound during early morning or late afternoon when ants are actively foraging.
The product is intended for spot treatment only and should not be mixed with water or applied more than once per season.
While effective, it has a strong odor and may cause grass injury if directly contacted. It is safe to use around children and pets once the dust settles, but users should wear protective equipment during application.
9. TERRO T600 Ant Dust Powder Killer
TERRO T600 Ant Killer Dust is a versatile, ready-to-use insecticide powder that effectively kills ants (including fire and carpenter ants), cockroaches, spiders, and many other crawling insects on contact.
Its active ingredient, deltamethrin, disrupts the nervous system of pests, providing fast and long-lasting control.
The dust is waterproof, ensuring it won’t wash away in the rain and remains effective for up to eight months, making it ideal for both indoor crack-and-crevice treatments and outdoor perimeter applications.
It can be applied around foundations, windows, doors, patios, garages, and other pest-prone areas to create a protective barrier.
For fire ant mound treatment, sprinkle one tablespoon evenly on the mound without watering it in or disturbing the ants, allowing 3 to 4 days for full control.
The product comes in a 16 oz container with a shaker top for easy application. Safety precautions include avoiding contact with eyes and skin and keeping it out of reach of children and pets during application.
10. Fertilome (11300) – Come and Get It Fire Ant Killer
Check PriceFerti-lome Come and Get It II Fire Ant Killer Granules offer an effective solution for controlling fire ants and harvester ants in lawns, flower beds, shrubs, and ornamental plantings.
The active ingredient, spinosad, is highly attractive to ants, encouraging them to carry the bait back to the colony, including the queen, which leads to colony elimination within 3 to 14 days.
Ants begin to appear sick and lethargic within 12 to 24 hours after consumption. This ready-to-use granular bait can be applied directly to mounds or broadcast over infested areas for broader control.
For mound treatment, use 4 tablespoons per mound, increasing to 6 tablespoons for larger mounds, spreading over a 4-foot diameter.
Broadcast rates vary from ⅓ to ⅔ cup per 1,000 square feet depending on infestation severity.
The product starts working quickly after watering in and provides residual control to help prevent new mounds from forming. It is important to apply in calm weather and avoid runoff to protect the environment.