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Kiwifruit's most unwanted

Kiwifruit's most unwanted

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

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 Kiwifruit's most unwanted

Kiwifruit's most unwanted

Ceratocystis fimbriata

Ceratocystis fimbriata is a soil-borne fungal pathogen that is causing significant damage to kiwifruit orchards in Brazil.

The first reports of a wilt disease in kiwifruit in Brazil appeared in 2010. In the following years, significant vine losses occurred, with some orchards losing 20 - 40% of vines. Over the last five years, some growers have reported 50% vine loss.

There are no efficacious control options available, and once the soil is contaminated, the replanting or re-grafting of new kiwifruit is not sustainable as the new vine will become infected. This pathogen is considered a serious biosecurity threat.

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

Pest ranking based on the KVH risk matrix

View risk matrix

KVH and Zespri are funding a number of research programmes to better understand this pathogen and reduce the likelihood and consequence of impacts to the New Zealand industry.

Read a report following a visit to Brazil to investigate Ceratocystis fimbriata.

Read about pathogenicity screening of isolates on kiwifruit cultivars.

Research proposals are currently being considered to sequence a number of Ceratocystis strains, including the kiwifruit and sweet potato strains. This will significantly advance our knowledge of the pathogen and enable primers to be developed for rapid and accurate detection.


Further Ceratocystis fimbriata resources

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LATEST NEWS

20 Dec 2024

KVH Christmas hours 2024-25

Merry Christmas from the KVH team. We wish you a safe and relaxing holiday period with your loved ones. The KVH office will be closed from Monday 23 December 2024 and will reopen at 8.30am on Monday 6 January 2025. If any urgent issues arise during this period, please feel free to get in touch by email or report unusual pest or disease symptoms on kiwifruit or vines online here. We will be regularly monitoring these channels and will respond as soon as possible. For urgent reporting of any unusual pests or diseases, the Biosecurity New Zealand hotline (0800 80 99 66) operates 24/7 over the holidays as per usual.

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13 Dec 2024

Our Biosecurity Act submission is available now

KVH’s submission on proposed amendments to the Biosecurity Act (as completed and submitted on Friday 13 December) can be read here. The Ministry for Primary Industries (MPI) is leading the review consultation process and our comprehensive submission on behalf of the kiwifruit industry addresses most of the proposed changes, as these have a bearing on how the biosecurity system will operate in the future. Significant areas for our sector that we have commented on relate to funding and compensation, readiness and response, and long-term management. MPI will now analyse submissions, publish a summary, and make recommendations to the Minister for Biosecurity. It is anticipated Cabinet will consider final policy proposals in 2025. Thank you to those who have discussed the submission with us. We welcome any further questions or feedback about the process at info@kvh.org.nz. Visit the MPI Biosecurity Act review webpage for detailed proposed amendments information Read more about how we developed our submission

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02 Dec 2024

KVH Biosecurity Act draft submission

In the last Bulletin we mentioned the consultation underway on several proposed amendments to the Biosecurity Act 1993. Our draft submission is now available to view here. We welcome the opportunity for further discussion so please do get in touch at info@kvh.org.nz by 13 December when the submission is due if you have questions. The consultation and our submission have been part of our presentation at the recent Grower Roadshows too, and we thank those of you who have already spoken with us about it. The Ministry for Primary Industries (MPI) is leading this process and our comprehensive submission on behalf of the kiwifruit industry will address most of the proposed changes, as these have a bearing on how the biosecurity system will operate in the future. Some of the proposals are significant to our sector, particularly those in the sections about funding and compensation, readiness and response, and long-term management.

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