The nest was discovered by officers from the Commonwealth Department of Agriculture, Fisheries and Forestry at the Enfield Intermodal Logistics Centre. Genetic testing has confirmed the ants likely arrived in a shipping container from overseas, not from south-east Queensland where Australia’s main fire ant infestation is located.
The ants, which are 2-6 millimetres long and dark red-brown in colour, live in ground nests. Their sting causes a burning sensation, swelling, and blistering.
The nest was destroyed, and specialist fire ant detection dog teams deployed to the site and the surrounding area found no further nests.
An incident management team has been established, involving experts from the NSW Department of Primary Industries and Regional Development and officers from the National Fire Ant Program based in Queensland. The government’s immediate focus is inspecting and treating properties within 500 metres of the logistics centre, followed by surveillance and treatment within a two-kilometre radius.
NSW Agriculture Minister Tara Moriarty said, “It’s important to note that no further ants have been found, but we are focused on making sure any potential spread is identified and eradicated quickly. While fire ants are one of the world’s most invasive species, they can and have been successfully eradicated in NSW.”
The NSW government stated it will contact local businesses dealing with soil, turf, building materials or vegetation to work through measures to identify and treat any fire ant incursion while minimising disruption.
The Invasive Species Council describes fire ants as one of the world’s worst super-pests, which could cost the Australian economy up to $2 billion a year if they become established and spread.
Invasive Species Council advocacy director Reece Pianta said the detection was a reminder of why investment in border biosecurity was so important, and called for more funding for the national eradication program. “In south-east Queensland they invade backyards, parks and sporting fields, attack pets and wildlife and threaten agriculture and infrastructure. Sydney does not want to find out what living with fire ants looks like,” Pianta said.
Fire ants were previously found at Port Botany in 2014 and were eradicated. Biosecurity teams have also successfully eradicated fire ant nest incursions in NSW’s Northern Rivers region over the past three years.