Nine Tasmanian sites linked to potato virus as tracing expands

Biosecurity Tasmania has now confirmed nine sites of concern in connection with the ongoing detection of Potato Mop-Top Virus (PMTV), as tracing activities intensify.

Seven of the affected sites are commercial grower properties, with most located in the north and north-west of the state. A newly identified seed line has now also been traced to a property in the south. The remaining two sites include a small research facility in southern Tasmania and a storage site in the north.

In addition, PMTV has been detected in three single potatoes — one found at a processing site and two others purchased from retail outlets. These cases have not yet been linked to any known infected sites, and investigations into their origins are ongoing.

The initial detection of the virus occurred at a farm in the north-west and marked the first ever confirmation of PMTV in Australia. Biosecurity Tasmania continues to work with affected growers to support business continuity while managing the risk of virus spread.

Several states have already imposed trade restrictions in response. Victoria has implemented a 12-month ban on potatoes sourced from Tasmanian farms linked to PMTV, though product from unaffected sites may still be exported under strict quality conditions.

New South Wales and South Australia have also introduced import controls.

Authorities are urging growers and supply chain participants to remain vigilant and report any unusual symptoms. Further updates will be provided as tracing and containment efforts continue.