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If you’ve ever stepped on a fire ant nest, you’ll never forget it. The sting feels like your skin’s on fire; and for good reason. Fire ants aren’t just a nuisance; they’re an invasive, aggressive, and potentially dangerous pest that can take over your lawn, bite your pets and even damage electrical equipment.
As a former pest control professional, I’ve seen what happens when homeowners ignore the early warning signs. These ants don’t just stay put - they spread fast. So if you’ve found fire ants in your backyard, here’s exactly what to do, step by step.
Before you grab a can of spray, make sure you’re dealing with fire ants. They’re:
Their stings burn, blister, and can trigger allergic reactions in some people. If you find a mound that fits this description, don’t disturb it. Stay clear and take action the right way.
Fire ants are a declared pest in Australia, which means you’re legally required to report them.
If you’re in Queensland or northern NSW, contact:
Fire Ant Eradication Program or call 13 25 2*.
This helps biosecurity teams track and contain infestations across Australia.
Now let’s talk about how to get rid of fire ants.
When I was in the field, we used two main methods: baiting and direct mound treatment. Each has its place, depending on the size of the infestation.
Option 1: Bait Treatments (Best for Larger Infestations)
Fire ant baits use slow-acting ingredients that the workers carry back to the nest - spreading it to the queen and eventually wiping out the whole colony.
Look for baits containing S-methoprene or hydramethylnon. These work by disrupting the ants’ life cycle and are highly effective when applied correctly.
Pro Tip: Apply baits in the early morning or late afternoon, when ants are actively foraging. Never apply just before rain, as moisture ruins the bait.
Option 2: Direct Mound Treatments (For Smaller Nests)
If you’ve only got one or two nests, a direct mound drench or insecticidal dust can be just as effective.
Products containing bifenthrin are commonly used to control fire ants at the source. Simply pour or drench the product directly over the mound following the label directions - and always wear gloves and protective clothing.
Once you’ve treated the problem, prevention is your best friend. Fire ants love disturbed soil, mulch piles, and sunny lawns - so keep an eye out for new mounds.
Here’s what I recommend:
Consistency is key. One good treatment won’t always do the job but ongoing prevention will keep your backyard safe and ant-free
Fire ants don’t discriminate. Whether you’re a homeowner, small business operator, landscaper or pest controller, staying vigilant matters. These pests can:
If you work outdoors or manage properties, having fire ant bait on hand is a smart move.
Here are three professional-grade products I personally recommend — all available here.
As someone who’s spent years dealing with pests of every kind, I can tell you - fire ants are not one to ignore. A single mound can turn into a full-blown infestation in weeks, so act fast, treat smart, and always follow up.
Need help finding the right product? For expert advice and a full range of fire ant control products trusted by professionals and homeowners alike. Visit our product range here.
