Seen something unusual?   MAKE A REPORT

Login/Register
Kiwifruit's most unwanted

Kiwifruit's most unwanted

There are eight organisms identified as the biggest biosecurity threat to New Zealand's kiwifruit industry.

Latest news
Close
 Kiwifruit's most unwanted

Kiwifruit's most unwanted

Brown Marmorated Stink Bug

The Brown Marmorated Stink Bug (BMSB) is the kiwifruit industry’s second-most unwanted biosecurity threat after fruit flies; and the risk of it entering New Zealand is considered extreme.

The BMSB is able to hitchhike on inanimate objects such as cars and shipping containers. If it were to enter New Zealand it would have no problem establishing due to New Zealand’s highly suitable climate and abundance of host material. Its entry and establishment would result in significant production impacts to many horticultural industries.

The high risk and potential consequence of BMSB have made it a priority for biosecurity readiness activities for both KVH and the Ministry for Primary Industries (MPI).

Threat Levels
Likelihood of entry
High
Likelihood of establishment
Medium
Production impacts
High
Market access impacts
Very Low

Pest ranking based on the KVH risk matrix

View risk matrix

BMSB preparedness

KVH is working with Zespri, MPI and the wider kiwifruit industry to ensure we are all prepared for BMSB, if it were to arrive and establish here. This includes running regular simulation exercises, hosting workshops, and developing joint workplans for how we would manage an incursion and long term response.

Read the BMSB Readiness Plan (A) for information about how the industry is ready for a New Zealand incursion. Read the BMSB Readiness Plan (B) for information about long term management considerations should BMSB establish in New Zealand.

Read the BMSB kiwifruit growers guide to long-term management. The guide outlines all the things growers should do on-orchard and how to do them when managing BMSB long-term.

In August 2018 the New Zealand horticulture industry welcomed the Environmental Protection Authority’s (EPA) decision allowing the release of a tiny Samurai Wasp into New Zealand, if ever there was an incursion of the BMSB. Read the media release here.

KVH and Zespri have recently designed a useful infographic tool for growers. It encourages growers to cast their eye into a possible future where BMSB has arrived in New Zealand and all response/eradication efforts have failed. What long-term management of the bug might look like on-orchard; factors to consider into future planning; and the times of the year each is most appropriate, is summarised in the infographic here.


BMSB photos and videos


BMSB reference material

SEEN SOMETHING UNUSUAL?

KVH investigates reports of unusual symptoms to identify and manage any biosecurity risks.

Make a report

LATEST NEWS

09 Nov 2026

Traceability with Onside

Through Onside, you can quickly and easily record all mandatory information of plant material movement to satisfy Pathway Management Plan and GAP requirements. All users of the Onside app can use this free functionality - all you need to do is: download Onside from your app store (Apple or Google Play) or opt-in to the biosecurity functionality if you already use Onsidecheck-in to a propertyrecord your plant movement details at anytime while checked-in. You can record source; destination; date; property KPIN; type; and volume. Growers can still keep physical records of plant material movements, but this free digital option has been designed to simplify the process of providing plant movement records as part of a GAP audit.

Read more about Traceability with Onside

05 Nov 2026

Now THAT'S a hornet's nest!

Thanks to the Bioeconomy Science Institute’s social media, we saw this enormous yellow-legged hornet nest (image below). Pictured is entomologist Natalie Page during a recent research trip to Jersey in the Channel Islands. Mature yellow-legged hornet nests can grow up to 80cm tall and weigh several kilograms. Natalie was in Jersey, where yellow-legged hornets are established, to lead research into which traps and lures work best at attracting these invasive insects. The findings will help inform our response, which you can read more about on our website here.

Read more about Now THAT'S a hornet's nest!

05 Nov 2026

November grower roadshows

We look forward to seeing you at the upcoming Zespri Grower Roadshows. We’ll be speaking at each location (alongside presentations from Zespri and NZKGI) providing an update on latest yellow-legged hornet activities, high-risk summer season detections, and the latest on the Pathway Plan review currently underway. The roadshows run 23 November – 3 December and will all be held in person, with an option to join the Te Puke event online. Register here.

Read more about November grower roadshows
View all

USE THE WEATHER & DISEASE PORTAL

The KVH portal is now the Zespri Weather & Disease Portal. Access all the weather tools you're familiar with.

Open now