Nearly 20,000 stonefruit plants required further testing over spring and summer when diseases of concern would be most evident if they were present.
MPI had worked with affected nurseries, importers, and growers to develop detailed individual testing plans for each owner. These plans took into account testing that had already been done in New Zealand.
Almost 48,000 affected apple and stonefruit plants and small trees were secured at 50 sites in Hawke's Bay, Waikato, Nelson and Central Otago. In total, 32 nurseries, importers, and growers were affected.
Just over 1000 apple plants had been voluntarily destroyed by 12 owners. Twenty owners opted to destroy over 6000 stonefruit plants.
"MPI remains open to receiving requests for payment for direct and verifiable losses incurred as a result of destroyed or contained plant material," Thomson said.
"We've written to all affected owners on this, and we are offering one-on-one meetings to talk through the process."