No more Brown Marmorated Stink Bug has been found in Tauranga following intensive trapping and detector dog surveillance.

But Biosecurity Minister Damien O'Connor is urging vigilance and continued surveillance to ensure it doesn't happen again.

He's asked Biosecurity New Zealand to investigate new ways of dealing with the increasing threat posed by the Brown Marmorated Stink Bug and other emerging biosecurity risks.

'I have requested Biosecurity New Zealand to take a fresh look at the country's 4518 transitional facilities, to make sure they have the capacity and expertise to properly handle increasing numbers of imports in a riskier global biosecurity environment,” he told SunLive during a visit to Tauranga today.

'We've got to make sure people are trained and everyone working at those facilities are up to scratch.

'Where you have a large volume transition facility, they will have a number of people who are well trained, who have the back up and may be call in dogs when necessary to look for things like the stick bug.

'But where there's a transitional facility that gets one or two containers a month, maybe their systems have become lax, that's what we want to check.

'We will work with industry to ensure every part of the biosecurity system is bolstered so it is agile enough to deal with new threats as they emerge.”

Damien says they are not sure how the stink bug sneaked in just before Christmas last year.

'There were 29 transitional facilities handling imports within 2km of where the stink bug was found,” says Damien.

'These facilities are dotted around our ports and airports, and are a key component of New Zealand's biosecurity infrastructure.

'They are on the front-line for keeping out unwanted pests like the stink bug, which could destroy our horticultural crops, cost our economy billions of dollars and literally be a plague on our houses if they become established in New Zealand.”

Damien visited Mount Manganui to see firsthand traps that have been set up around where the stink bug was found.

He's been briefed on surveillance efforts by biosecurity staff while there.

'At moment we are as safe as we can be, we are always trying to improve our game,” says Damien.

'The reality is New Zealand is an island nation and has to import a huge amount of goods.

'Every one of those importations particularly from high risk countries could bring in something that's unwanted.”