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Psa-V

Psa-V

Psa-V Pseudomonas syringae pv. actinidiae (Psa) is a bacteria that can result in the death of kiwifruit vines. It was first discovered in New Zealand in November 2010 and rapidly caused widespread and severe impacts to New Zealand's kiwifruit industry.

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Past Psa-V resources


The kiwifruit industry has been at the forefront of biosecurity and pest management for many years. This proactiveness and future thinking continues with implementation of of the industry’s Pathway Management Plan.

With the introduction of the new Plan, the industry moved into a new phase of Psa protection and longer-term management from 1 April 2023.

Psa continues to be managed in the same way, by the industry working collectively at an orchard, regional and national level to reduce spread and impacts, and ensure best practice for day-to-day management of the pathogen on-orchard.

To ensure the very best support for growers moving forward through this new phase there are changes in some responsibilities. To be consistent with other crop protection responsibilities for pests already present in New Zealand, Zespri now coordinates support to growers to manage the impact of Psa on-orchard and updates industry resources and tools to promote Psa management best practice. View these on the Zespri Canopy website here.

As the industry's dedicated biosecurity body KVH retains all high-risk management of Psa and preparedness for any new variants.


Psa resources produced by KVH pre 1 April 2023

Below you will find several Psa resources and pieces of information and advice that were produced by KVH prior to the 2023 move into a new phase of longer term management and the introduction of the Pathway Management Plan.

If you have any questions about these resources and their past usage, please contact KVH at info@kvh.org.nz or 0800 665 825.

The Biosecurity (National Psa-V Pest Management Plan) Order 2013 commenced Friday 17 May 2013 for a 10 year term. Detailed information is available here, or you can read the KVH summary.

Read more about development of the Pathway Management Plan, which replaced the NPMP.

Psa best practice

Psa spray information

Psa protectant products

Information about the five categories of products (copper, bactericides, elicitors, biological control agents, and CPPU).

Psa cut out: orchard assessment

Psa cut out: resources for teams

Psa orchard hygiene posters

English - Maori - Hindi - Nepalese - Punjabi - Samoan - Spanish - Thai - Simplified Chinese - Tongan

A short instructional hygiene video was also produced in English and Punjabi.

Psa risk compass infographic posters

The Psa-V risk compass provided infographic-style poster presentations of key issues for consideration when developing and implementing strategies for managing Psa-V.

Male management

Male vines appear more susceptible to Psa than female vines. Choice of cultivar and careful cultural management of male vines are important in minimising productivity impacts of Psa on orchards.

Psa research and development

KVH and Zespri innovation established in early 2011 a global research and development programme that enlisted the best scientific minds globally to provide solutions. This created a toolbox for managing Psa, and our understanding of appropriate plant husbandry progressed significantly.

Between 2011 and 2023, many reports and papers were published for the kiwifruit industry on the KVH website.

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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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