Sydney Introduces Two-Kilometre Fire Ant Control Zone Around Enfield Freight Centre

New South Wales introduced a biosecurity control order on Monday, 26 October, covering a two-kilometre radius around the Enfield Intermodal Logistics Centre in Sydney, as authorities continue efforts to contain red imported fire ants detected at the freight facility in September.

The order regulates the movement of materials that could carry the invasive insects, including soil, turf, mulch, potted plants and heavy equipment. Businesses must handle and treat affected materials appropriately before moving them out of or through the controlled area. Ordinary travel by residents and workers is not restricted, according to the state government.

The measures follow the discovery of a nest at the logistics centre, a site involved in the movement of freight containers. Authorities believe the insects may have arrived from overseas, but the source of the incursion has not been conclusively established in the latest announcement.

The state government said its response has included surveillance in the immediate area using nine detection dogs and 60 personnel. No additional nests have been identified during those searches, despite almost 400 reports to the public hotline. Officials cautioned that the absence of further detections does not remove the need for monitoring.

The government described the control order as part of a longer-term programme of monitoring and compliance. It said consultations with local businesses and residents informed how restrictions would apply to materials that could spread fire ants while minimising disruption to everyday activity.

Red imported fire ants can sting and threaten agriculture and native species if they establish new populations. Residents who suspect a nest are advised not to disturb or treat it themselves; they should photograph it from a safe distance and report the location to biosecurity authorities. The order is a precautionary containment measure, not confirmation that a wider infestation has been found.