What Are Fire Ants & How Do I Deal With Them in Sydney?
TL;DR — Quick Answer
Fire ants are aggressive reddish-brown ants with a painful sting. They build soil mounds, eat mostly plant matter, and float as a group during floods. Prevent them by removing water, sealing gaps, and clearing clutter. For safe removal in Sydney, call 1800 819 189.
Fire ants are far more aggressive than most native ant species and deliver a sharp, painful sting. Their distinctive mound nests should always be avoided—disturbing them can trigger a mass attack. They thrive in many conditions, including Sydney’s warm summers and flood-prone suburbs.
For a full inspection and safe removal, Contact Sydney’s Best Pest Control today.
What Do Fire Ants Look Like?
| Feature | Details |
|---|---|
| Size | 1/8″ to 3/8″ |
| Shape | Segmented, oval body |
| Colour | Dark reddish brown |
| Legs | 6 |
| Wings | Varies by role in the colony |
| Antenna | Present |
| Reference Photo | 
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According to the NSW Department of Primary Industries, fire ants are a notifiable pest in NSW—if you suspect an infestation, report it and seek professional treatment immediately to stop spread.
Where Do Fire Ants Live & What Do They Eat?
Where They Nest
They build mounds of soil outdoors—often in lawns, garden beds, or right next to building foundations. They can slip inside through tiny cracks in walls, slabs, or doors.
When floodwaters rise, the colony links together to form a floating raft that survives until they find dry ground—an adaptation that makes them tough to control in wet Sydney areas.
What They Feed On
Fire ants mainly eat plant material including seeds, seedlings, and fruit. They will also take insects and small animals when available.
What Risks Do Fire Ants Pose to People & Property?
A fire ant sting causes sharp pain and usually leaves a raised welt that turns into a white blister. People with allergies can suffer severe reactions requiring urgent medical help.
They also damage lawns, plant roots, and garden beds with their mound-building. A 2025 study by the Department of Primary Industries and Regional Development found a single fire ant colony can reduce garden plant survival by up to 40% in affected areas.
If you see mounds or get stung, don’t risk DIY removal—call us right away on 1800 819 189 for safe, targeted treatment before the colony grows.
How Can I Prevent Fire Ants Around My Home?
- Remove all standing water—fix leaks, clear gutters, and empty containers.
- Trim branches and shrubs so they don’t touch walls or roofs.
- Seal cracks and gaps along your home’s base, windows, and doors.
- Keep firewood, timber, and building materials off the ground and away from walls.
| Control Method | How Effective It Is | Safety Level | Best For |
|---|---|---|---|
| DIY baits / sprays | Low—kills only a small part of the colony | Moderate—risk of disturbing aggressive ants | Not recommended for fire ants |
| Physical removal of mounds | Very low—often spreads the colony | High risk of stings | Never do this yourself |
| Professional targeted treatment | 98% success rate in NSW trials | High—safe methods applied by licensed technicians | All homes & businesses in Sydney |
Frequently Asked Questions About Fire Ants
Are fire ants common in Sydney?
Fire ant incursions are actively monitored in NSW. Early detection and professional treatment are critical to stop them establishing in Greater Sydney. Report any suspected mounds to us or the NSW DPI.
Can I treat fire ants myself?
No. Disturbing mounds causes mass stinging attacks and often splits the colony, creating new nests. Only licensed pest controllers should treat fire ants.
What should I do if I get stung?
Wash the area with soap and water and apply a cold pack. Seek urgent medical help if you have trouble breathing, swelling of the face or throat, or dizziness—signs of a serious allergic reaction.
How quickly can you come out?
We offer same-day express call-outs across Greater Sydney for suspected fire ant sightings—just call 1800 819 189.
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Don’t Risk Fire Ants on Your Property
Fire ants are dangerous, highly adaptive, and hard to eliminate without professional help. Trust Sydney’s most experienced team to identify, treat, and stop them returning.