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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
Winter opportunities to reduce Psa risk
9 July 2015
Winter is a key time to reduce orchard vulnerability to Psa-V by moving away from less tolerant varieties such as Hort16A. Grafting onto clean stumps greatly improves chances of establishment of new...
Winter opportunities to reduce Psa risk
9 July 2015

Winter is a key time to reduce orchard vulnerability to Psa-V by moving away from less tolerant varieties such as Hort16A. Grafting onto clean stumps greatly improves chances of establishment of new varieties and rapid return to a productive canopy.  The Hawkes Bay orchard in the photo illustrates the value of planning ahead with Gold3 notch-grafts already well-established as the Hort16A canopy is removed.

For Hayward orchards Matua and M-Series males are known to be less tolerant to Psa-V and are generally the worst affected in high Psa-V infection years. They should be progressively removed, and stump-grafted or notch-grafted to the generally more Psa-V tolerant and highly beneficial chieftain males during winter.  This change reduces Psa-V infection risk within the orchard with the flow on effect of also reducing risk of flower-bud infection through lower in-orchard inoculum levels.

Growers with Hayward on Kaimai rootstock have identified these plants as more vulnerable to leaf-spot through spring.  Plants may have been introduced as replacements and can be scattered through orchards or established in rows where shelters have been removed. They add risk, as high incidence of leaf-spot provides an ongoing inoculum source for the orchard throughout the year and a strategy of replacing these is recommended.

Hort16A rootstocks, or Hort16A interstocks accidentally maintained in cut-over blocks, also add risk as they can be a source of exudate through the spring period. Growers in the Te Puke area are generally looking to reestablish these plants to remove risk.  Growers grafting blocks to Gold3 are similarly recommended to ensure interstocks are removed as the influence of these on Psa risk and also future cropping effects are unknown.

When grafting, make every effort to secure budwood from the cleanest source and maximise hygiene through the grafting process to provide the best opportunity of graft success.

Also in winter take the opportunity to replant alongside unthrifty plants. A good source of healthy plants are now available through the Kiwifruit Plant Certification Scheme (KPCS) and replacing weak plants is a future investment into the overall health and cropping potential of the orchard.

Other strategies to reduce Psa-V risk before spring are found on the Psa-V Risk Compass.
 

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.)

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).

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.

 

R&D News
9 July 2015
R&D report on KVH website - Autumn spraying for protection of Psa-V
9 July 2015
This trial was established to determine the effects of an intensive autumn spray protection programme on Gold3 and Hort16A. It was difficult to separate treatment effects as the Gold3 site had little...
R&D report on KVH website - Autumn spraying for protection of Psa-V
9 July 2015

This trial was established to determine the effects of an intensive autumn spray protection programme on Gold3 and Hort16A. It was difficult to separate treatment effects as the Gold3 site had little infection and the Hort16A site had too much infection. There was a trend for treatment programmes including a full programme with coppers, foliar applied elicitors and KeyStrepto™ to reduce the effects of Psa-V by comparison with other lesser treatment programmes.

Click here to view the report.

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.

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.

Grower News
25 June 2015
Best practice management of potential copper tolerance
25 June 2015
Results from KVH’s latest round of resistance testing show the importance of applying copper at the correct label rates for effective Psa control. In lab tests, Psa-V samples from 5 of 56 KPINS...
Best practice management of potential copper tolerance
25 June 2015

Results from KVH’s latest round of resistance testing show the importance of applying copper at the correct label rates for effective Psa control. In lab tests, Psa-V samples from 5 of 56 KPINS tested in the wider Bay of Plenty Region showed some growth  when a 15% concentration of copper was applied. It is concerning to see possible signs of tolerance to one of our key tools for fighting Psa-V.

What is being done?        
KVH is carrying out further work to establish the nature of the tolerance, including re-sampling and further sampling from the five orchards. KVH is working with scientists to quantify the level and develop a recommended programme to monitor and manage the issue going forward.

KVH will work with orchard owners where tolerance or resistance has been identified to ensure best practice management is in place. This includes removal of infected material, the application of sprays at label rates, alternating spray products, movement restrictions on plant material and a strong focus on orchard hygiene.

Through the R&D and product testing programme Zespri and KVH are continuing to look for alternative and sustainable control approaches for Psa-V.

What can growers do?
KVH recommends growers remain proactive and maintain a year-round comprehensive Psa-V management programme. This includes monitoring, removing signs of Psa-V, applying protective sprays at label rates, and alternating protectant spray products where possible. It is also very important to maintain orchard hygiene to reduce the potential for resistant Psa to enter your orchard, or spread within if present.
 

Grower News
25 June 2015
Winter field-day round
25 June 2015
The recent Zespri winter FON rounds were well supported by growers. KVH provided a short hand-out summarising key points to protect orchards against Psa-V through winter. Click here for a copy...
Winter field-day round
25 June 2015

The recent Zespri winter FON rounds were well supported by growers. KVH provided a short hand-out summarising key points to protect orchards against Psa-V through winter.

  • Click here for a copy of the KVH hand-out.

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