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Budwood and grafters

Budwood and grafters

The movement of plant material, including budwood, to orchards where Psa is not detected, and to the South Island, is strictly prohibited or restricted.

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Budwood and grafters

There is no effective way to ‘clean’ infected material of Psa or guarantee it is free of other pathogens.

Best practice to reduce risk is to source budwood from your own orchard and this is KVH’s recommendation.

Should you choose to supply or source budwood from elsewhere there are requirements and recommended practice for reducing the likelihood of spreading other pathogens.

The movement of plant material, including budwood, presents the highest risk of spreading Psa and other kiwifruit pathogens.

Suppliers and distributors must register with KVH. 

There are three options for budwood supply

  1. KPCS Full Certification budwood: This is for KPINs who are not Psa positive and have tested Not Detected on all samples in their sampling and testing round in March/April. They can supply both Not Detected and Psa positive orchards as per the table below.
  2. KPCS Restricted Certification budwood: This is for KPINs who are Psa positive. They may only supply other Psa positive orchards in a Recovery region. Vines budwood is collected from must not be showing any Psa symptoms at time of collection.
  3. Grow for your own use: This option is for the movement of small volumes of plant material between well connected orchards under the same ownership. Budwood can move between KPINs under the same legal ownership provided no more buds are moved than are required to graft 1000 plants per year under this option.

Traceability records must be maintained for budwood under all three options.

From To South Island To North Island
(Psa positive orchard)
To North Island
(not detected orchard)
North Island
(not detected orchard)
PROHIBITEDAllowed for certified budwood suppliers/distributorsAllowed for certified budwood suppliers/distributors
North Island
(Psa positive orchard)
PROHIBITEDAllowed for certified budwood suppliers/distributorsPROHIBITED
South IslandAllowed for certified budwood suppliers/distributorsKVH authorisation requiredKVH authorisation required

Steps to achieve certification

Supplying KPIN

  • Every KPIN supplying budwood regardless of who it is going to must register with KVH (complete the registration form further below on this page).

  • Complete orchard monitoring and record in manual.

  • Complete any testing requirements (Not Detected orchards must do a Psa test).

  • Complete the Budwood Manual (a WORD version is available here) documenting how the requirements will be met.

  • Submit manual to KVH once the above is complete to achieve certification.

  • KVH will issue a KPCS certificate once monitoring and testing requirements are met. Budwood must not move off the orchard until certification has been achieved.

  • Maintain records and be audited to confirm compliance.


  • Register with KVH (complete the registration form further below on this page).

  • Ensure the KPINs being used are KPCS certified (see above).

  • Complete the traceability/distribution record.

  • Maintain records and be audited to confirm compliance.


  • Growers wishing to obtain budwood must ensure that if it is not from their own orchard(s) that it is from a KPCS certified budwood supplier or registered distributor.

Information and templates


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

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06 Jun 2024

On the look-out for vine disorders

KVH follow-up of unusual symptoms including “sudden collapse of vines” during flowering or leading up to harvest, often identifies symptoms which have gone unnoticed for some time. Leader dieback; swellings at, above or below the graft; swelling at the trunk crown (base); or cracking, cankering, or swelling of leaders and trunks is often not noticed, as the focus in any production year is generally on the canopy, buds, flowers, and fruit rather than the architecture of vines. A perfect job for autumn and early winter is to complete a monitoring round to assess and act on vine symptoms that have crept in under the radar across the years and which are indicative of kiwifruit vine disorders. Mapping of symptomatic vines allows insight into areas where gaps are emerging, or canopies are becoming sparse due to a decline in vine health. Replacement strategies, such as replanting alongside affected plants or stringing of replacement canes from vines in adjacent rows will allow for the cut-out of infected vines without a significant drop in production. The earlier infected vines are removed the better, as spores from the fungal invaders can be harboured in fruiting bodies within the infected area and spread via soil, water, and air movements. Infections in leaders and canes can also be spread by unclean tools and infections in rootstock can travel across graft unions and impact on newly grafted cultivars. Research projects initiated through the Zespri Biosecurity Innovation portfolio have identified several fungal organisms associated with the various kiwifruit trunk disease symptoms and shown that disease complexes rather than single species are generally involved. Regular monitoring of sites is valuable as new growing situations can change the status of fungal diseases. Different cultivars and rootstock may be more susceptible, marginal growing areas, environmental factors, stressed and aging vines, different management practices (e.g. girdling) and build-up of site inoculum are all factors that can lead to a change in vine impacts. Annual review helps ensure orchards remain resilient and successful into the future. More information on vine decline and trunk diseases is available here and an image library of trunk symptoms to watch out for is available here. If you have unusual symptoms that need follow-up, contact [email protected]

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04 Jun 2024

Mystery Creek Fieldays – see you there

We look forward to seeing you at Fieldays next week. We’ll be in the Zespri tent as per previous years, taking part in midday presentations each day providing updates on our biosecurity activities and upcoming Biosecurity Symposium. Gates are open - and we’re on-site - daily from Wednesday to Friday, 8.00am to 5.00pm. For more information and to purchase tickets, visit the Fieldays website.

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04 Jun 2024

Upcoming KVH AGM

KVH’s Annual General Meeting (AGM) will take place at 9am, Wednesday 21 August, at Mercury Baypark in Mount Maunganui. Growers will receive their AGM packs by email during the last week of July. This is a public meeting and anyone who is interested is welcome to attend. Special guest Dr Jacqueline Rowarth will be joining us to speak about precision breeding, followed by the NZKGI and then Zespri annual meetings.

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