A significant outbreak of fire ants has been confirmed at BHP’s Broadmeadow coal mine located 150km inland from Mackay, Queensland. The detection occurred last week, prompting the National Fire Ant Eradication Program (NFAEP) to intervene. On July 9, officials visited the Moranbah site and successfully eradicated a fire ant nest using a method known as direct nest injection.
Authorities are now investigating how these invasive pests reached the mine. A spokesperson for the NFAEP stated they are collaborating closely with BHP Mitsubishi Alliance to manage, treat, and eliminate the infestation. The Invasive Species Council has condemned the presence of fire ants at the coal mine, labelling the breach as “unacceptable.” These ants, native to South America, have been spreading throughout Queensland and were able to survive flooding events earlier this month.
Following Cyclone Alfred, fire ants demonstrated their resilience by forming “rafts”—linking their legs together to float on floodwaters, a behaviour that has raised concerns among experts regarding potential further spread across the state. Amanda Lintott from Autonomy highlighted that the ants may have been hitching rides on vehicles, travelling unnoticed to new areas.
The potential for flood-induced spread poses a serious issue that many are unaware of. Images have shown entire colonies of fire ants clinging to floating debris, ready to establish new nests as the waters recede. Experts warn that these invasive species could be swept into new parts of Australia due to extreme weather conditions, creating additional challenges for management efforts.
Fire ants are known for their aggressive behaviour and painful sting. Bites can cause immediate pain and, in some cases, severe allergic reactions that necessitate medical attention. While many individuals can manage symptoms with cold compresses and antihistamines, serious reactions require swift action.
Fire ants were first identified in Brisbane in February 2001, with the origins of their entry into Australia still uncertain, though they are believed to have arrived via shipping containers from the USA. At two to six millimetres long, these pests can have catastrophic environmental, economic, and health consequences. The Invasive Species Council warns that their unchecked proliferation could result in economic repercussions more significant than those caused by well-known invasive species like cane toads and feral cats.
The community is urged to learn to identify fire ants and their nests and report any sightings via the NFAEP by calling 132 ANT (13 22 68) to help combat this invasive threat.