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Grower News
24 July 2014
Mandatory monitoring
24 July 2014
Regular monitoring is an important part of Psa -V prevention and management plans, particularly following wet, windy and frosty weather. Growers on ‘Not Detected’ orchards, especially...
Mandatory monitoring
24 July 2014

Regular monitoring is an important part of Psa -V prevention and management plans, particularly following wet, windy and frosty weather.

Growers on ‘Not Detected’ orchards, especially those in Exclusion regions, should be regularly monitoring their vines over winter and spring for signs of Psa-V infection. Those on Psa-V positive orchards should be monitoring to identify any canes and/or vines showing signs of infection which need to be removed to prevent spread of infection.

As part of KVH requirements under the NPMP we need to collect data and report on Psa-V progression to ensure the objectives of the plan are being meet.  To meet these objectives we require growers to report their monitoring results.

August mandatory monitoring results from the following orchards must be submitted to KVH by 10 September 2014:

  • All orchards in Exclusion regions
  • All orchards in Containment regions
  • Not Detected orchards in Recovery regions

Note—Psa-V positive orchards in Recovery regions are encouraged to send in their results but this is not mandatory.

An updated online mandatory monitoring form will be available on the KVH website next week.
 

Grower News
24 July 2014
Harvest bin inspections
24 July 2014
Following a recent de-brief, it was revealed KVH audited 100 percent of bins (14,863 bins) in the 2014 harvest season that were supplied to Whangarei, North-West Auckland and Kerikeri from Recovery...
Harvest bin inspections
24 July 2014

Following a recent de-brief, it was revealed KVH audited 100 percent of bins (14,863 bins) in the 2014 harvest season that were supplied to Whangarei, North-West Auckland and Kerikeri from Recovery region packhouses. More than 180 of these bins contained kiwifruit plant material and were returned to the packhouse for cleaning and sanitising. No bins containing plant material were sent to any orchards.

Before sending bins to other containment regions (Wanganui, Coromandel, Gisborne and Hawkes Bay) packhouses were asked to advise KVH, and a 10-20 percent sample of these bins were inspected by KVH auditors along with the packhouse sanitising and inspection systems.

KVH received no complaints from any growers about the cleanliness of the harvest bins delivered to their orchards.

R&D News
24 July 2014
R&D report - new on KVH website
24 July 2014
Crop Safety of Late Leaf Fall Copper Applications on Gold3—by HortEvaluation A study was undertaken to determine whether copper applied with a superspreader or a penetrant adjuvant at late...
R&D report - new on KVH website
24 July 2014

Crop Safety of Late Leaf Fall Copper Applications on Gold3—by HortEvaluation

A study was undertaken to determine whether copper applied with a superspreader or a penetrant adjuvant at late leaf fall causes phytotoxicity to buds. A second objective of this project was to evaluate efficacy for Psa disease control.

Click here for the final report.

Grower 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

Grower News
17 July 2014
KeyStrepto/Copper resistance testing
17 July 2014
As reported in the KVH Bulletin (19 June) ongoing testing as part of the KVH/Zespri R&D programme is underway to identify early any strains of Psa-V showing potential resistance to protective...
KeyStrepto/Copper resistance testing
17 July 2014

As reported in the KVH Bulletin (19 June) ongoing testing as part of the KVH/Zespri R&D programme is underway to identify early any strains of Psa-V showing potential resistance to protective compounds.

The latest results from Verified Lab Services (VLS) for Streptomycin/copper resistance testing confirms to date, no resistance has been detected.

This is an ongoing testing programme. In future we are looking to improve the testing process by including more KPIN samples and extending outside the Te Puke region.

Growers who have used KeyStrepto™ or copper and would like to be part of the resistance monitoring programme by allowing samples to be collected from their orchard can register their interest with KVH at info@kvh.org.nz.


 

Grower News
17 July 2014
Psa-V in Korea
17 July 2014
Psa-V was detected in Korea in the mid 1980’s and that strain is now referred to as Biovar 2. This virulent biovar was a contributing factor to the removal of uncovered Hayward orchards on...
Psa-V in Korea
17 July 2014


Psa-V was detected in Korea in the mid 1980’s and that strain is now referred to as Biovar 2. This virulent biovar was a contributing factor to the removal of uncovered Hayward orchards on Jeju Island where the Zespri Gold orchards are now located.

A new Psa-V strain has been recently identified in Korea—on the mainland and on Jeju Island. We understand this strain is part of the Biovar 3 group (same group as the New Zealand strain). The Biovar 3 is having an impact on multiple varieties including Hort16A, as has other strains in the past. New Zealand and Korean researchers are working on characterising the bacteria to determine its origin.

Zespri is supporting its Korean growers by providing information and best practice techniques to manage Psa-V.
 

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.
 

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