Biosecurity officials have found more fruit flies in Auckland.
A fourth male Queensland fruit fly has been found inside an existing exclusion zone in the North Shore suburb of Northcote.
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There will be no further restriction on the movement of fruits and vegetables in the suburb as a result of the find.
But the discovery of a third Facialis fruit fly in Ōtara was 630 metres to the north of the last find, biosecurity officials say.
A new exclusion zone will be set up in Ōtara, which means there will be restrictions on the movement of fruit and vegetables in a different area.
"We strongly urge people living in Ōtara to check if they are living in either zone or what this means for them. We will be working closely with the local community to get this information out to people," the Ministry for Primary Industries said in a statement.
No new fruit flies have been found in Devonport since the initial discovery on February 14. Biosecurity New Zealand spokesperson Dr Catherine Duthie said the controlled zone there will be reassessed soon.
"Given the proximity of Devonport to Northcote we will reconsider next week whether we need to continue with movement controls in Devonport.
"We are very grateful for the support all communities affected by the fruit fly detections have given us."
The Queensland fruit fly poses significant risk to New Zealand's horticulture industry.