Auckland has been declared free of the Queensland fruit fly after a $13.6 million operation to get rid of the pest.
Staff this morning cleared traps in Grey Lynn for the final time and found no trace of the bug.
"We have not found any fruit flies in the affected area since March and enough time has passed to confidently say that New Zealand is again fruit fly free," Martyn Dunne of the Ministry of Primary Industries says.
The control area around Auckland suburbs has been lifted.
The eradication programme cost over $13m as at the end of October, but with the insect a "significant threat" to New Zealand's $3.6 billion horticultural exports industry, it was a "very justifiable investment", Mr Dunne says.