Search Site

Newsroom

Print these articles
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

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