Kiwifruit marketer Zespri said it had "temporarily deferred" exports to China - its biggest market by volume - until new checking protocols are in place.
A spokeswoman for Zespri said she expected sales to be deferred for about a week.
The move follows a "warning notification" from China's General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ), issue last Friday.
The notice specified more stringent inspection and quarantine processes on New Zealand kiwifruit entering China ports and strengthened pre-shipping processes to prevent further incidences of this fungus arriving in China.
"We are working with New Zealand kiwifruit suppliers and the Ministry for Primary Industries (MPI) to develop additional pre-shipping measures in response to AQSIQ's risk notification issued after the find of the fungus Neofabraea actinidiae through routine testing on four containers of fruit which arrived at Tianjin Port on June 8," Zespri said in a statement.