A fourth orchard in Te Puke has been confirmed with the kiwifruit vine-killing disease PSA. MAF is currently investigating 82 orchards in total.

Herald political columnist John Armstrong reports from Apec, where Prime Minister John Key has warned of the possibility of imminent "currency wars" if trade imbalances are not dealt with.

As suspicions grow that Psa has spread to kiwfruit orchards outside the BOP, MAF says it's unlikely it will be able to eradicate the disease.

The Govt could learn today whether diseased kiwifruit vines will need to be destroyed, as leaves begin to wilt on the first properties reported.

The Ministry of Agriculture and Forestry is preparing to copper-spray kiwifruit orchards affected by the vine-killing Psa bacteria, despite reservations it could do more harm than good.

A vine-killing disease threatening to cost NZ's kiwifruit industry hundreds of millions of dollars is spreading. Last night, 75 orchards were showing possible symptoms.

Seventy-five properties have made contact about possible Psa symptoms, with the Govt worried the disease may be far more widespread.

A round-up of information about the kiwifruit vine disease Psa.

The presence of the devastating kiwifruit disease Psa has been confirmed at a second kiwifruit orchard, and Zespri says it has received photos of potential symptoms of the bacterium at 43 orchards around the country.

A kiwifruit industry expert is warning that under reaction to the vine canker disease could be fatal for the industry.

A third Kiwifruit orchard has been placed under 'restricted place notice' after symptoms of a bacterial infection were found.

The public is being asked to stay away from all kiwifruit orchards as the extent of a bacterial outbreak already confirmed on one Bay of Plenty property remains unclear.