The Government of Tasmania is taking action to manage an outbreak of the Potato Virus Y tuber necrosis strain (PVYNTN) among potato crops. The virus, which is spread by aphids and contact with plant sap, causes unsightly rings on the potatoes and makes them unfit for use. The virus does not pose a risk to humans. Biosecurity Tasmania is working with affected producers to test and trace crops, and advising on containment and disposal of infected crops. The virus was first detected in Tasmania in 2021.