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Grower News
17 July 2014
Protection especially important during wet weather
17 July 2014
Almost twice as much rainfall than last year has been recorded in June 2014 at the Te Puke Research Orchard (TPRO) (see graph above). Similar rainfall patterns have occurred in other parts of the...
Protection especially important during wet weather
17 July 2014

Almost twice as much rainfall than last year has been recorded in June 2014 at the Te Puke Research Orchard (TPRO) (see graph above). Similar rainfall patterns have occurred in other parts of the country with winter 2014 shaping up to be much wetter than last year.

Many growers will be struggling to complete their normal orchard activities in between this wet weather. The application of protectant sprays before and after pruning is particularly important through this time.

KVH recommends the application of a minimum of five copper sprays during dormancy. Research and experience has shown a strong copper programme over the dormant period has significant advantages the following spring.
 

Grower News
17 July 2014
Hail netting installation on the increase
17 July 2014
It is reported around 500ha of Gold3 orchards have now installed hail netting, with many more growers wanting to install it. Growers see a number of advantages to protect their crops from wind and...
Hail netting installation on the increase
17 July 2014

It is reported around 500ha of Gold3 orchards have now installed hail netting, with many more growers wanting to install it.

Growers see a number of advantages to protect their crops from wind and hail, including additional Psa-V protection. Good on-orchard shelter reduces physical damage (wounding) which creates Psa-V entry points.
 

Protocols & Movement Controls
17 July 2014
First nursery certification audits take place
17 July 2014
Last week the first nursery audits took place for for the ‘Core Standard’ of the Kiwifruit Plant Certification Scheme (KPCS). Certified plants from participating nurseries will be...
First nursery certification audits take place
17 July 2014

Last week the first nursery audits took place for for the ‘Core Standard’ of the Kiwifruit Plant Certification Scheme (KPCS). Certified plants from participating nurseries will be available for purchase from next week.

By tomorrow (Friday) four nurseries will have been audited in Nelson, Gisborne, and Kerikeri. There will be a short delay pending the outcome of diagnostic tests before plants are available from some of these nurseries.

Audits are carried out by external auditors. However, KVH is maintaining visibility and ensuring consistency of the Scheme by reviewing nursery manuals prior to the audit, and being present at all initial audits.

The KPCS was launched in May this year and means growers will be able to purchase certified kiwifruit plants from participating nurseries, giving them assurance they are investing in the best possible start for their plants.

A list of participating nurseries will be available on the KVH website as nurseries complete the process to sell certified Core Standard plants. For more information visit www.kvh.org.nz/kpcs.
 

Company Notices
17 July 2014
R&D update meeting - presentations available
17 July 2014
More than 100 growers and industry attended the R&D update in Te Puke on Tuesday. It was encouraging to see so many people, considering it was the first fine day after continuous heavy rain, and...
R&D update meeting - presentations available
17 July 2014

More than 100 growers and industry attended the R&D update in Te Puke on Tuesday. It was encouraging to see so many people, considering it was the first fine day after continuous heavy rain, and growers were probably keen to winter prune their orchards.

Presentations from the meeting are available on the KVH website here and summarised below. 

Psa-V situation update and seasonal reminders—Linda Peacock (KVH)

  • Spring is when we will see Psa-V progress
  • Protect orchards through autumn/winter with robust protective spray programmes
  • What growers do NOW to protect their orchards will make a difference in spring

Psa-V product testing trials update—Elaine Gould (Zespri)

  • Glasshouse trials
  • Hort16A trials
  • Gold3 Elicitor trials
  • Copper trials
  • Biological Control Agents

Orchard trials update—Mary Black (Zespri)

  • Sustainable Farming Fund project—optimising copper use
  • Trial updates
  • Optimal time to winter prune Gold3
  • Autumn/winter spray protection in Gold3
  • Crop safety of late season copper
  • Bud-rot trials in Hayward and Green14

OPC bud-rot trials—Jayne Chamberlain and Severine Brun (Zespri)

  • French bud-rot trials 2013   
  • New Zealand bud-rot trials 2013
  • Mitigating bud-rot
  • Optimising outcome from infected flowers

Metabolomics—Greg Clark (Zespri)

  • Understanding kiwifruit metabolism (the kiwifruit vine biochemical processes that ‘make it tick’)
  • How kiwifruit plants adapt their metabolism for survival under stress, including disease
  • Can we manipulate kiwifruit metabolism to fight disease?
R&D News
17 July 2014
R&D report - new on KVH website
17 July 2014
Rapid commercialisation of an integrated, biologically based management package for Psa-V A follow up project aimed at validating the field efficacy of Trichoderma and Yeast Mix and determining...
R&D report - new on KVH website
17 July 2014

Rapid commercialisation of an integrated, biologically based management package for Psa-V

A follow up project aimed at validating the field efficacy of Trichoderma and Yeast Mix and determining the compatibility of the two yeast strains with a copper-based product. Also, to identify a suitable manufacturer of Trichoderma and Yeast Mix and a distribution partner in New Zealand in order to facilitate a ‘fast tracking’ process that would move both prototype BCAs towards commercialisation as quickly as possible, on the condition that significant disease reductions were achieved in field studies.

Click here for the report

Protocols & Movement Controls
10 July 2014
Movement restrictions of kiwifruit wood for firewood use
10 July 2014
At this time of year a lot of kiwifruit wood is sourced and moved for the use of firewood. The movement of kiwifruit wood for firewood use is covered by KVH Protocol—Other Plant Material....
Movement restrictions of kiwifruit wood for firewood use
10 July 2014

At this time of year a lot of kiwifruit wood is sourced and moved for the use of firewood. The movement of kiwifruit wood for firewood use is covered by KVH Protocol—Other Plant Material.

Key movement controls from the Protocol are outlined below.

  • Kiwifruit plant material for firewood use must not be moved from any Psa-V positive orchard or site unless prior approval from KVH has been given.
  • Plant material for firewood use must not be moved between regions.
  • Recovery regions—plant material for firewood use may move within the same Recovery region if sourced from ‘not-detected’ orchards.
  • Containment regions—plant material for firewood use may move within the same Containment region if sourced from ‘not-detected’ orchards. However this requires authorisation by KVH prior to movement.
  • Exclusion regions—plant material for firewood use may move within the same Exclusion region.


If you are unsure about the movement of plant material for firewood use, or have any queries, please contact KVH on 0800 665 825 or email info@kvh.org.nz before you move it.
 

Grower News
10 July 2014
Kerikeri Psa-V progression
10 July 2014
Those who observe KVH’s weekly statistics will have noticed Psa-V has progressed in Kerikeri recently, with Psa-V identified on seven new orchards in June. Last week Zespri’s Shane...
Kerikeri Psa-V progression
10 July 2014

Those who observe KVH’s weekly statistics will have noticed Psa-V has progressed in Kerikeri recently, with Psa-V identified on seven new orchards in June.

Last week Zespri’s Shane Max, KVH Operations Manager, Peter Mourits and Te Puke grower, Robbie Ellison visited growers on newly infected Kerikeri orchards to discuss the situation and options going forward. The team also held a grower meeting which was attended by more than 50 local growers.

Key points from the Kerikeri visit

  • In most cases, the recently infected orchards received fewer copper sprays over the wet autumn weather than other local orchards; and infection was found in less sheltered parts of the orchard.
  • Psa-V has been found in a number of young Gold3 orchards, while disease was not present in neighbouring Hort16A orchards where more regular copper has been applied. This highlights that while Gold3 is more tolerant to Psa-V it still requires regular protective sprays, particularly in wet, cool conditions.
  • Growers were reminded of the importance of continuous removal of all infected material, regular protective sprays and the need for orchard hygiene.
  • Psa-V progression in Hort16A has been slower than expected. This is partly attributed to the warm, dry weather earlier in the year, regular copper sprays over the wet weather and early removal of any Psa-V symptoms.
  • Spray diary analysis shows Hort16A blocks in Kerikeri have had an average of nine copper applications over the last season, compared to six applications on Gold3 blocks.
  • Overall, the management of low vigour males on some orchards was excellent; and its obvious Kerikeri growers are learning from experience in other regions. 
  • Growers have been asked to be vigilant and carefully monitor orchards with the expectation that more orchards will express red exudate when sap starts to flow in spring.
     
Grower News
10 July 2014
France Psa-V update
10 July 2014
During the French spring (April/May) Hayward orchards in the Tarn et Garonne area were expressing severe exudate, causing panic amongst some local growers. KVH Director Craig Thompson visited at this...
France Psa-V update
10 July 2014

During the French spring (April/May) Hayward orchards in the Tarn et Garonne area were expressing severe exudate, causing panic amongst some local growers. KVH Director Craig Thompson visited at this time to understand the situation and his report can be found in the July/August Kiwifruit Journal.

An update from Zespri’s Severine Brun in France, reports those growers who applied a consistent and robust protective spray programme over the past few years have reported little or no Psa-V symptoms; and unlike last spring in France, this spring has been kinder to French growers, with temperatures through June being warmer and drier than the 30-year average.

As a result, less Psa-V symptoms have been observed, flower loss is much lower than last year and growers are generally much more positive about the ability to continue growing kiwifruit in a Psa-V environment.

Hort16A continues to be a badly affected variety and those few growers who are still growing it are trying to achieve another harvest.

Gold3 is looking good, with very limited symptoms, mostly noticed in spring (dry canes and/or exudate on a few vines per block).
 

Grower News
3 July 2014
Kasumin removed from CPS for 2015 season
3 July 2014
Zespri has removed Kasumin® from the Crop Protection Standard (CPS) for the 2015 season while further research is done to confirm the most effective use pattern. This research is expected to...
Kasumin removed from CPS for 2015 season
3 July 2014

Zespri has removed Kasumin® from the Crop Protection Standard (CPS) for the 2015 season while further research is done to confirm the most effective use pattern. This research is expected to confirm the optimal pre-flowering withholding period for Kasumin® and the number of applications allowed in the pre-flowering period.

Zespri has taken a conservative approach to this Psa management tool in this case, as the suite of Psa-targeted products is considered sufficient to manage Psa this season.

Growers can use up to four applications of KeyStrepto™ on producing and non-producing vines for the 2015 season, though no more than two consecutive applications are allowed without using another Psa-targeted product – e.g. copper.
 

  • Between 13 June and 31 July 2014, KeyStrepto™ use is permitted with a Justified Approval (JA).
  • A JA is not required from 31 July 2014 until seven days before the first kiwifruit flowers opening (male or female).
  • KeyStrepto™ must not be used during flowering.
  • An alternate Psa control product – e.g. copper – must be used after a maximum of two consecutive KeyStrepto™ applications.

Refer to the KeyStrepto™ User Guide for detailed rules of use. Growers are responsible for ensuring all use conditions are complied with. KVH no longer conducts pre-use audits.

The KeyStrepto™ User Guide and Site Inspection Record are available on The Zespri Canopy and the KVH website.

If you have any queries please contact Gordon Skipage at Zespri.
 

Grower News
3 July 2014
On orchard workers provide extra monitoring resource
3 July 2014
People working on orchards at this time of year can provide extra resource for carrying out monitoring duties. Growers should be alerting their orchard workers to be on the lookout for signs of Psa-V...
On orchard workers provide extra monitoring resource
3 July 2014

People working on orchards at this time of year can provide extra resource for carrying out monitoring duties. Growers should be alerting their orchard workers to be on the lookout for signs of Psa-V infection, particularly cane dieback and exudate.

Don’t forget hygiene measures should be in place to prevent introduction or spread of infection between plants, rows, blocks and orchards.

Biosecurity News
3 July 2014
GIA Secretariat visits KVH
3 July 2014
The Government Industry Agreement (GIA) Secretariat visited KVH staff today to give an update on the GIA, including where other primary industries were within the process. The GIA Secretariat...
GIA Secretariat visits KVH
3 July 2014

The Government Industry Agreement (GIA) Secretariat visited KVH staff today to give an update on the GIA, including where other primary industries were within the process. The GIA Secretariat facilitates implementation of the partnership described in the GIA Deed and acts in the interests of all Deed Signatories.

As reported in the KVH Bulletin (22 May) the kiwifruit industry was the first to sign the GIA Deed on 20 May.

On 22 July, New Zealand Pork will be the next industry to sign the GIA Deed, representing all New Zealand pork producers.

Like the kiwifruit industry, by signing the GIA Deed, NZ Pork is recognising that biosecurity is a major risk to New Zealand pork producers and that their industry is acting responsibly in taking all possible steps to mitigate this risk.

KVH Chief Executive, Barry O’Neil, spent two days in Wellington this week discussing financial arrangements for GIA as part of a joint working group; and the development of the Operational Agreement for Fruit Fly.

Click here for more information about GIA.

Grower News
3 July 2014
Remove infection during winter
3 July 2014
Winter is an opportune time for growers to remove visible signs of infection from their orchards, including cane dieback and exudate. Ideally, growers should do this before winter pruning. Cut back...
Remove infection during winter
3 July 2014

Winter is an opportune time for growers to remove visible signs of infection from their orchards, including cane dieback and exudate. Ideally, growers should do this before winter pruning. Cut back 40cm from signs of infection.

Removing infection allows pruners to structure vines accordingly and minimise later potential impacts on production.

Click here to read more about winter protection from Psa-V.
 

Kiwifruit Vine Health

Suite 3, Level 1, Customhouse Building
314 Maunganui Road, Mount Maunganui
(entrance cnr Totara and Rata Street)
PO Box 4246, Mount Maunganui, 3149
New Zealand

Tel:  0800 665 825
Fax: 07 574 7591

Email: info@kvh.org.nz