Experts have raised alarms over the growing fire ant invasion in Queensland, with recent findings suggesting the situation may be more severe than previously believed. The Invasive Species Council noted that the discovery of a new nest in Baringa, situated near existing ones, signals a “broader, more entrenched infestation” of these pests on the Sunshine Coast.
Reece Pianta, Advocacy Director at the Invasive Species Council, emphasised the urgency of the situation. He warned that the repeated sightings of fire ants in the Sunshine Coast area indicate they may have breached the northern containment line, potentially leading to widespread infestation. Pianta has called for a swift “surveillance blitz” to assess the extent of the problem, as well as an increase in funding to tackle the threat.
The recent detection is part of a concerning trend, with several outbreaks reported across southeast Queensland in recent months. Many of these instances appear to be linked to construction activities, particularly through materials such as soil, mulch, and turf. Pianta believes some nests may have evaded biosecurity measures six to twelve months ago, exacerbated by funding delays in the 2022–23 period that postponed eradication efforts.
Without prompt intervention, the nests are likely to proliferate. Residents are being encouraged to inspect their properties and report any fire ant nests they encounter. The situation is deemed a national biosecurity emergency by Pianta, who warns that if fire ants escape their confinement, they could spread throughout the country, threatening agriculture, public health, and biodiversity.
Originally from South America, fire ants were first detected in Brisbane in February 2001, believed to have arrived via shipping containers. Measuring between two to six millimetres long, they pose serious environmental, economic, and health risks, with their painful stings capable of causing severe reactions in both humans and animals. Most cases can be managed at home with cold compresses and antihistamines, but emergency medical treatment may be necessary for those with severe allergic responses.
In summary, the alarming rise in fire ant populations in Queensland has sparked calls for immediate action and heightened surveillance to prevent a larger ecological crisis.