However, it was extremely unlikely the fly would have been able to establish in New Zealand's cool climate.
The Tau fly scare followed the find of a small population of Queensland fruit flies in Auckland's Grey Lynn last February.
About 80 per cent of New Zealand's horticulture crops are susceptible to attack by the Queensland fruit fly.
The Queensland fruit fly was declared eradicated after a 10 month community-wide campaign.
The ministry monitors for the presence of about 100 species of fruit fly using lure traps, as the absence of the flies enables export of fruit and vegetables without treating them.
In the 2014-2015 season, there were 4920 traps in Auckland, of 7651 nationwide.
There have been nine interceptions of economically important fruit flies since 1989.