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R&D News
24 July 2015
R&D reports: Efficacy of Ambitious for controlling Psa on mature Hayward
24 July 2015
Additional research to determine the efficacy of Ambitious for controlling Psa on mature Hayward vines is now available on the R&D section of the KVH website. Ambitious currently holds a limited...
R&D reports: Efficacy of Ambitious for controlling Psa on mature Hayward
24 July 2015

Additional research to determine the efficacy of Ambitious for controlling Psa on mature Hayward vines is now available on the R&D section of the KVH website.

Ambitious currently holds a limited label claim for the control of Psa in kiwifruit. An application to ACVM for a full label claim will be made this season. Work is still needed to better understand the mode of action of this product.

The efficacy of Ambitious 10SL on mature Hayward Vines for controlling Pseudomonas syringae actinidiae, by Fruitfed Supplies
Trials testing the efficacy of Ambitious for controlling Psa on mature Hayward vines showed Ambitious was effective in reducing the severity of leaf spotting and performed similarly to Actigard. Ambitious did not appear to show any efficacy on reducing the levels of bud rot and bud loss.

  • Click here for the report.


Ambitious 10SL efficacy on Psa disease on Hayward kiwifruit 2014-15, by HortEvaluation
Trials at two high inoculum sites in the Bay of Plenty showed application of Ambitious mid-season (between budbreak and flowering) significantly reduced Psa leaf spot on mature Hayward kiwifruit vines. No significant differences in percentage flowers retained, fruit set or reject fruit type were observed between trial and control plots.

  • Click here for the report.
R&D News
24 July 2015
R&D reports: 2014-15 potted plant trial results
24 July 2015
Elicitors on Gold3 potted plants, January to March 2015 Field trials on potted Gold3 plants tested efficacy of a range of elicitors in inducing a plant immune response to Psa. TNL3454 (at higher...
R&D reports: 2014-15 potted plant trial results
24 July 2015

Elicitors on Gold3 potted plants, January to March 2015
Field trials on potted Gold3 plants tested efficacy of a range of elicitors in inducing a plant immune response to Psa. TNL3454 (at higher concentrations) and AB48414 showed a level of Psa control comparable to Actigard™ for up to six weeks post-Psa inoculation. Citrox BioAlexin showed some significant Psa control four weeks post inoculation. This product could offer organic growers an elicitor option. However, further trials to prove consistent efficacy would be advisable. ProAct and Silver combined and Luna Care did not show efficacy.

  • Click here to read the report.

Psa control products on Bruno potted plants, December 2014 to January 2015
Field trials on potted Bruno plants further tested the efficacy of a range of potential Psa protectants. At the recommended concentration, Nanospada significantly decreased leaf spotting for up to three weeks post Psa inoculation. When diluted, Nanospada had no significant effect, supporting the use of the recommended rate. Another product, TNL3214, significantly reduced leaf spotting throughout the trial. KOF products only provided control when combined with Streptomycin. 

  • Click here to read the report.
Biosecurity News
24 July 2015
Brazilian fungal disease high priority for Biosecurity Steering Group
24 July 2015
Ceratocystis fimbriata is a fungal pathogen causing wilt disease in a number of plant species, including kiwifruit where significant impacts have been reported in Brazil in recent years. The...
Brazilian fungal disease high priority for Biosecurity Steering Group
24 July 2015

Ceratocystis fimbriata is a fungal pathogen causing wilt disease in a number of plant species, including kiwifruit where significant impacts have been reported in Brazil in recent years.

The serious potential impacts of Ceratocystis fimbriata and the lack or kiwifruit specific research being done elsewhere makes this a high priority organism for Kiwifruit Biosecurity Research and is on KVH’s Most Unwanted List.

Ceratocystis fimbriata projects within the Kiwifruit Biosecurity Research Portfolio include:

  • Pathogenicity testing of the New Zealand kumara strain of C. fimbriata. Fortunately the results of this project shown that the New Zealand strain is not pathogenic to kiwifruit and therefore our efforts can be focused on keeping new pathogenic strains outside of New Zealand.
  • A comprehensive literature review by an international expert to specifically understand the risks and potential impact of the pathogen to the New Zealand kiwifruit industry. This review has significantly improved our understanding of C. fimbriata.
  • The next project will sequence a number of Ceratocystis strains to develop primers that will advance our ability to keep pathogenic strains out of New Zealand and provide a tool to diagnose infected vines should the pathogen establish.

A Ceratocystis fimbriata fact sheet can be found on the KVH website here.

Biosecurity News
24 July 2015
KiwiNet workshop
24 July 2015
Last week KVH held its second KiwiNet workshop. The aim of the workshop was to bring together KiwiNet coordinators to discuss industry deployment into the Queensland Fruit Fly response earlier this...
KiwiNet workshop
24 July 2015

Last week KVH held its second KiwiNet workshop. The aim of the workshop was to bring together KiwiNet coordinators to discuss industry deployment into the Queensland Fruit Fly response earlier this year, lessons learnt from the response and next steps for developing KiwiNet.

Many attendees were involved in the QFF response in Auckland and overall the deployment of KiwiNet into the QFF response went well and feedback was positive. However, there is always room for improvement so the workshop provided valuable feedback from those involved.

Presentations from the workshop are available below:

Grower News
9 July 2015
KeyStrepto and Kasumin use conditions updated
9 July 2015
Use conditions for KeyStrepto™ and Kasumin™ have been updated and are available on the Zespri Canopy here. The number of permitted applications of KeyStrepto and/or Kasumin has been...
KeyStrepto and Kasumin use conditions updated
9 July 2015

Use conditions for KeyStrepto™ and Kasumin™ have been updated and are available on the Zespri Canopy here.

The number of permitted applications of KeyStrepto and/or Kasumin has been reduced to a maximum of two for both producing and non-producing vines. These may only be applied in the pre-flowering period (after dormancy and before the start of flowering).

  • KeyStrepto™ can be used on producing and non-producing vines from budbreak until seven days before flowering (male or female).
  • Kasumin™ can be used on producing and non-producing vines from budbreak until 21 days before flowering (male or female).

The User Guides will be made available to industry once they have been confirmed.

Grower News
9 July 2015
New positive orchard in Gisborne
9 July 2015
Last week a new Psa-V positive result was reported on a Hort16A orchard in Gisborne – the first positive result since March. Red exudate was detected on vines following a recent pruning...
New positive orchard in Gisborne
9 July 2015

Last week a new Psa-V positive result was reported on a Hort16A orchard in Gisborne – the first positive result since March. Red exudate was detected on vines following a recent pruning round.

Winter pruning is a good opportunity to monitor orchards for suspicious symptoms as every vine is visited.

Growers on not-detected orchards who suspect Psa-V or other unusual symptoms are required to report these to KVH on 0800 665 825 or email info@kvh.org.nz so lab testing can be carried out (or in recovery regions Psa-V can be verified by suitably trained packhouse personnel.)

Biosecurity News
9 July 2015
Biosecurity 2025 project - consultation underway
9 July 2015
Industry and public consultation on MPI’s Biosecurity 2025 project is now underway. The Biosecurity 2025 project was launched by MPI in April to review and future-proof New Zealand's...
Biosecurity 2025 project - consultation underway
9 July 2015

Industry and public consultation on MPI’s Biosecurity 2025 project is now underway. The Biosecurity 2025 project was launched by MPI in April to review and future-proof New Zealand's biosecurity system. 

KVH is actively engaged in this process to ensure the best possible outcome for the kiwifruit industry is achieved. A draft submission has been prepared which will be reviewed by the KVH Board and once finalised a copy of the formal submission will be made available on the KVH website.

The key priorities and areas of focus in KVH’s submission include:

  • Ensuring the right governance is in place
  • System performance agreed and monitored
  • System agility and responsiveness
  • R&D to keep up with new technology

Growers are encouraged to find out more about the project on MPI’s website and email KVH with any questions or feedback to info@kvh.org.nz.

Biosecurity News
9 July 2015
Biosecurity budget
9 July 2015
In addition to the new border clearance levy announced in the recent budget an additional $24.9 million to fund a range of new biosecurity initiatives was also confirmed. These activities...
Biosecurity budget
9 July 2015

In addition to the new border clearance levy announced in the recent budget an additional $24.9 million to fund a range of new biosecurity initiatives was also confirmed. These activities include:

  • Improving NZ’s import health standards to ensure they continue to keep pace with changing science and focus on our highest priorities.
  • Greater auditing of other countries’ systems to ensure they are compliant with NZ’s unique biosecurity requirements.
  • Expanding the biosecurity detector dog capability to manage border risk.
  • Introducing more x-ray machines to allow for faster screening of increasing passenger volumes.
Biosecurity News
9 July 2015
Border clearance levy - consultation underway
9 July 2015
Consultation with primary industry stakeholders is also underway for the new border clearance levy that was recently announced in the Government’s 2015 budget. This levy, in the form of a...
Border clearance levy - consultation underway
9 July 2015

Consultation with primary industry stakeholders is also underway for the new border clearance levy that was recently announced in the Government’s 2015 budget.

This levy, in the form of a passenger surcharge, will provide sustainable funding for New Zealand's biosecurity system and increased protection at the border; and KVH is fully supportive of this levy.

Last week KVH attended a consultation meeting and will be making a formal submission on behalf of the kiwifruit industry. Once finalised this will become available on the KVH website.

 

Grower News
9 July 2015
Two-day and six-day risk maps
9 July 2015
Growers using the two-day and six-day New Zealand risk maps may have recently noticed an error which saw all the maps without any risk index colour at all (see image). This occurs very rarely when...
Two-day and six-day risk maps
9 July 2015

Growers using the two-day and six-day New Zealand risk maps may have recently noticed an error which saw all the maps without any risk index colour at all (see image). This occurs very rarely when the data is exactly the same all over the country, and therefore the model has nothing to contour. It has since been corrected.

Protocols & Movement Controls
9 July 2015
Southern Cross Horticulture joins plant certification scheme
9 July 2015
Southern Cross Horticulture in Tauranga is now producing plants certified under the Kiwifruit Plant Certification Scheme (KPCS). Southern Cross is the first nursery in a Recovery Region to achieve...
Southern Cross Horticulture joins plant certification scheme
9 July 2015

Southern Cross Horticulture in Tauranga is now producing plants certified under the Kiwifruit Plant Certification Scheme (KPCS). Southern Cross is the first nursery in a Recovery Region to achieve this Standard, demonstrating that with good hygiene and biosecurity practices, a nursery can produce good clean plants undercover even in close proximity to orchards with Psa-V.

KPCS certification demonstrates that Southern Cross Horticulture is managing its biosecurity risks, has been independently audited, visually inspected for target organisms, and returned a non-detected result for a comprehensive test for Psa-V. This involves 600 leaves being sampled from across the operation.

While KPCS plants are permitted greater freedom of movement, movement controls still apply and no plants (KPCS or otherwise) are permitted to move from a Recovery Region to a Containment or Exclusion Region. KVH movement controls are detailed in KVH Protocol: Nursery Stock. Please contact KVH on 0800 665 825 for clarification if you are unsure about any movement.

Nurseries continue to tell us that many growers are not placing orders for plants far enough in advance. To ensure nurseries have plants available to meet demand, orders should be placed before Christmas of the year prior to dispatch (preferably in October).

Company Notices
9 July 2015
KVH Annual General Meeting
9 July 2015
The 2015 KVH AGM is on Thursday 23 July starting at 4pm at Club Mount Maunganui, corner Totara and Kawaka streets, Mount Maunganui.  AGM papers and proposed resolutions have been sent to KVH...
KVH Annual General Meeting
9 July 2015

The 2015 KVH AGM is on Thursday 23 July starting at 4pm at Club Mount Maunganui, corner Totara and Kawaka streets, Mount Maunganui.  AGM papers and proposed resolutions have been sent to KVH members and are available below.

In addition to the AGM matters, MPI’s Steve Gilbert, Director of Border Clearance Services, will give an overview of the challenges at the New Zealand border.

Growers and industry participants are encouraged to attend but only members have voting rights. Please RSVP to info@kvh.org.nz.

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