Published 06 March 2026
Scientific evidence and collaboration underpin Australia’s goal of eradicating fire ants by 2032. As the nation’s largest biosecurity initiative, we work to protect Australia from the devastating impacts of this invasive pest. Our program is world-leading, and we have some of the best minds in the world in our corner, working in the field, in the lab, and behind the scenes.
Our Science Manager, Steven Torrisi, says research shows that our treatment approach of treating 100% of all targeted properties multiple times, over several years, is the only proven method of eradicating fire ants.
'IGRs are the only scientifically proven way to tackle fire ants at the scale needed here in Australia. They are supported by solid science and independent assessments both locally and overseas,' he explains.
So far, we have successfully eradicated 8 of 9 genetically distinct incursions, and slowed the ants’ spread. In Queensland, fire ants naturally move about 5 kilometres per year, in areas not receiving eradication treatment, compared to the 50 to 80 kilometres per year in countries like China and the United States.
'Without our efforts, fire ants could have reached as far north as Townsville, west past Longreach, and south to Albury. Most new infestations happen through human-assisted movement, which is why working together across communities and industry is so important,' Steven says.
We understand concerns about IGRs and native insects, and these have been carefully studied.
'IGRs have very little impact on local ants. New colonies naturally recolonise once treatment has been completed. Fire ants, on the other hand, can out-compete native species. Without action, we risk losing native ants, as has happened overseas,' he adds.
Our eradication approach involves multiple rounds of treatment over several years to make sure we reach all fire ants in our eradication treatment area.
'We use the documented flight distance of fire ants to determine the area most at risk of infestation and treat every property in these areas, even if no fire ants are visible. Very young colonies can be present without a visible mound and are very difficult to detect. Repeat treatments make sure queens are unable to replenish their workers for long enough for the colony to die ,' Steven says.
The IGRs we use have been assessed and approved by the Australian Pesticides and Veterinary Medicines Authority for over 20 years, so we know they are safe and effective when used as directed.
'Treatments are carefully formulated to target fire ants while keeping impacts on other insects to a minimum,' he says.
Our science team keeps learning more about fire ant behaviour and works with research institutes to improve our fire ant treatments.
'This isn’t a one-size-fits-all approach. We tailor strategies for each situation, drawing on local and international evidence and international collaboration,' Steven explains.
'By combining science, teamwork, and innovation, we are protecting Australia’s health, environment, economy, and outdoor way life we all enjoy.'