Mr Muller said Zespri paid a premium for early fruit so testing had started last month with samples from all orchards sent for analysis at an independent laboratory contracted to Zespri at Katikati near Tauranga.
"We start picking and packing when we get clearance," he said.
John McIntosh, who manages Huanui Orchards' 14ha kiwifruit division at Glenbervie, near Whangarei, and also owns a 4ha orchard producing kiwifruit and other fruit, said grower-owned Zespri had a very thorough auditing system to ensure export fruit met high health and food safety standards.
Mr McIntosh praised Zespri's orchard management system which he credited toward New Zealand gaining a reputable position in the global kiwifruit market.