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Grower News
20 August 2015
Craig Ward wins NZ Young Fruit Grower
20 August 2015
Congratulations to Craig Ward from Apata Group Ltd for winning the NZ Young Fruit Grower of the Year competition at the recent national competition in Christchurch. Craig also came runner-up for the...
Craig Ward wins NZ Young Fruit Grower
20 August 2015

Congratulations to Craig Ward from Apata Group Ltd for winning the NZ Young Fruit Grower of the Year competition at the recent national competition in Christchurch. Craig also came runner-up for the overall NZ Young Grower competition.

Craig represented the Bay of Plenty in the national comp and was up against fruit growers from Otago, Nelson, Hawkes Bay and Gisborne.

 

Grower News
20 August 2015
Spring brings stirrings of Psa-V
20 August 2015
KVH has just completed a monitoring round of Gold3 and Hayward vines across the Bay of Plenty, including orchards from Maketu, Edgecumbe, Waihi and Opotiki. Cane dieback and fresh exudate (often...
Spring brings stirrings of Psa-V
20 August 2015

KVH has just completed a monitoring round of Gold3 and Hayward vines across the Bay of Plenty, including orchards from Maketu, Edgecumbe, Waihi and Opotiki.

Cane dieback and fresh exudate (often from multiple points) were obvious on many male vines and some female vines. Reports of similar symptoms have been received from Waikato and Katikati orchards.

  • Click here to view symptoms found across the region.

With spring around the corner, growers are advised to carefully monitor areas of their orchards where they have had symptoms in the past.
Information on Psa-V management will be covered in the upcoming spring Psa industry meeting on Wednesday 2 September.
 

Biosecurity News
6 August 2015
MPI ramps up biosecurity for air passengers
6 August 2015
New biosecurity measures will be introduced by the Ministry for Primary Industries to make it tougher for air passengers to bring goods into New Zealand that could carry pests or diseases. The...
MPI ramps up biosecurity for air passengers
6 August 2015

New biosecurity measures will be introduced by the Ministry for Primary Industries to make it tougher for air passengers to bring goods into New Zealand that could carry pests or diseases. The measures are the result of new biosecurity funding from the government’s 2015 budget.

The planned new biosecurity measures include:

  • Introducing 20 new biosecurity detector dog teams.
  • Introducing five new x-ray machines.
  • Trialling a mobile x-ray machine that can shift to different sites.
  • Greater ability to increase the level of biosecurity intervention for air passengers according to risk.
  • Introducing specific communications to target passengers more likely to carry Queensland fruit fly host materials.

Click here for more details on MPI’s website.
 

Biosecurity News
6 August 2015
Spiders in Mexican grapes may change import rules
6 August 2015
Import requirements for Mexican grapes may change following the detection of a black widow spider by a member of the public in some Mexican red seedless grapes. More than 20 spiders were...
Spiders in Mexican grapes may change import rules
6 August 2015

Import requirements for Mexican grapes may change following the detection of a black widow spider by a member of the public in some Mexican red seedless grapes.

More than 20 spiders were subsequently detected in imported Mexican grapes around the country.

MPI has an investigation underway and the results may see changes to the import health standard requirements. However it is too early to confirm what course of action MPI will take.

In the case of Mexico grapes, current requirement is for MPI officers (based in Arizona) to verify the fruit is free of pests, as certified by the Mexican government.

If regulated pests (including spiders) are detected, the consignment is not allowed to be exported. MPI has been fumigating all imports of this season’s Mexican grapes at the border since the discovery of the spiders.
 

Grower News
6 August 2015
Gazette notice for KVH grower levies
6 August 2015
The following notices will be published in the New Zealand Gazette following the approval of the grower levies at the KVH AGM held on 23 July 2015: Rate of Levy Under the Biosecurity (Psa-V...
Gazette notice for KVH grower levies
6 August 2015

The following notices will be published in the New Zealand Gazette following the approval of the grower levies at the KVH AGM held on 23 July 2015:

  • Rate of Levy Under the Biosecurity (Psa-V – Kiwifruit Levy) Order 2013

Pursuant to section 9 of the Biosecurity (Psa-V – Kiwifruit Levy) Order 2013, it was resolved at the Annual General Meeting of Kiwifruit Vine Health Incorporated on 23rd July 2015, that the levy rate for the 2016 levy year (commencing on 1 January 2016 and ending on 31 December 2016) apply at the rate of 0.28 cents per kilogram (1 cent per tray equivalent) to all varieties, or cultivars, of green kiwifruit (Actinidia deliciosa) exported to any place other than Australia, and at the rate of 0.56 cents per kilogram (2 cents per tray equivalent) to all varieties, or cultivars, of gold and red kiwifruit (Actinidia chinensis) exported to any place other than Australia. Barry O’Neil, Chief Executive Officer, Kiwifruit Vine Health Incorporated. PO Box 4246, Mount Maunganui, NZ.

  • Rate of Levy Under the Biosecurity (Readiness and Response—Kiwifruit Levy) Order 2015

Pursuant to section 10 of the Biosecurity (Readiness and Response – Kiwifruit Levy) Order 2015, it was resolved at the Annual General Meeting of Kiwifruit Vine Health Incorporated on 23rd July 2015, that the levy rate for the 2016 levy year (commencing on 1 April 2016 and ending on 31 March 2017) apply at the rate of 0.16 cents per kilogram (0.6 cents per tray equivalent) for all varieties of kiwifruit of the genus Actinidia, except Actinidia Arguta, exported to markets other than Australia. Barry O’Neil, Chief Executive Officer, Kiwifruit Vine Health Incorporated. PO Box 4246, Mount Maunganui, NZ.
 

Grower News
6 August 2015
Spring Psa-V industry meeting : Wed 2 September
6 August 2015
KVH will hold a Psa-V spring industry meeting on Wednesday 2 September from 3pm-5pm at the Orchard Church in Te Puke and growers are encouraged to attend. While Psa progression has slowed over the...
Spring Psa-V industry meeting : Wed 2 September
6 August 2015

KVH will hold a Psa-V spring industry meeting on Wednesday 2 September from 3pm-5pm at the Orchard Church in Te Puke and growers are encouraged to attend.

While Psa progression has slowed over the 2015 growing, spring is a high-risk season and a timely reminder to growers to keep up to date with the latest developments in R&D and Psa orchard management.

Joel Vanneste (P&FR), Barry O’Neil (KVH), Elaine Gould and Greg Clarke (Zespri) will present at the meeting.

Joel works closely with the industry to understand and provide advice around resistance management which is a focus for the industry this year.

Elaine and Greg will give an update on the KVH and Zespri R&D programme along with advice around pre-flowering trunk girdling and an update on the product testing programme.

Topics include:

  • Regional Psa update
  • Use of bactericides and copper
  • Update on streptomycin resistance
  • Spray programme for spring
  • Use conditions for KeyStrepto™ and Kasumin
  • Best practice to reduce resistance/tolerance developing
  • Innovation update
  • Spring girdling – males/females and best timing
  • Product update
  • Q&A session

Light refreshments will be provided following the meeting, providing a good networking opportunity.

Please RSVP to info@kvh.org.nz
 

Biosecurity News
6 August 2015
MPI gives grower overview of border clearance services
6 August 2015
MPI’s Director of Border Clearance Services, Steve Gilbert, recently gave an overview of the very real biosecurity challenges New Zealand faces at the border to KVH members at its AGM. Steve...
MPI gives grower overview of border clearance services
6 August 2015

MPI’s Director of Border Clearance Services, Steve Gilbert, recently gave an overview of the very real biosecurity challenges New Zealand faces at the border to KVH members at its AGM.

Steve also outlined what MPI is doing to mitigate these risks and highlighted the critical role a working partnership between government and industry through GIA plays to support this.

Some key points from Steve’s presentation:

  • The world is rapidly evolving and our biosecurity system must adapt with it
  • The current system won’t be enough in the next 5-10 years
  • Air and cruise ship passenger numbers are increasing (air +23% and cruise ship +5% by 2021), trade and freight is increasing (+41% by 2021) and express freight volumes are increasing (+33% by 2021)
  • These increases escalate the risk at the NZ border
  • The border clearance levy comes into effect on 1 December 2015 – providing a revenue base to fund increasing passenger numbers
  • The level of effort and intensity by MPI is increasing to help mitigate border risks. This includes more x-ray inspectors, mobile x-ray, increased auditing of pest free areas in Australia, more detector dogs used throughout airports and the border clearance levy

Click here to view Steve’s presentation.
 

Biosecurity News
24 July 2015
Introducing the Biosecurity Steering Group
24 July 2015
KVH and Zespri have established a Kiwifruit Biosecurity Steering Group with a goal of reducing the risk and impact of biosecurity incursions to the kiwifruit industry. Consisting of members from...
Introducing the Biosecurity Steering Group
24 July 2015

KVH and Zespri have established a Kiwifruit Biosecurity Steering Group with a goal of reducing the risk and impact of biosecurity incursions to the kiwifruit industry.

Consisting of members from KVH, Zespri, Plant and Food Research, Scion, Avocados New Zealand and the Ministry for Primary Industries (MPI), the steering group will identify knowledge gaps and prioritise research needs relating to kiwifruit biosecurity threats not yet established in New Zealand.

Associated with the steering group is the newly established Kiwifruit Biosecurity Research Portfolio. The portfolio is funded by the KVH biosecurity levy with matching contributions by Zespri and managed by the Zespri Innovation team.

The Biosecurity Steering Group will prioritise research to meet the following objectives;

  • Develop a greater understanding of the biosecurity threats to the kiwifruit industry;
  • Develop tools to reduce the likelihood of establishment and impact of these biosecurity threats, which includes tools for diagnostics, surveillance, eradication and management;
  • Pathway analysis to understand where gaps may occur in the biosecurity system and take a collaborative approach with the Ministry for Primary Industries to address these.

More information about the new Biosecurity Steering Group will be provided in the next Kiwifruit Journal article.

Grower News
24 July 2015
Waikato regional update
24 July 2015
In early July KVH revisited six Waikato orchards (both conventional and organic) to discuss harvest results and also understand how Psa-V had affected growers through the 2014-15 growing...
Waikato regional update
24 July 2015

In early July KVH revisited six Waikato orchards (both conventional and organic) to discuss harvest results and also understand how Psa-V had affected growers through the 2014-15 growing season.

Generally growers reported good harvests with excellent pollination and strong autumn growth, lifting fruit numbers, dry matter and fruit size.

On the Psa-V front, it was acknowledged that challenges are still very much front of mind, particularly on colder and less well-drained areas of orchards, or in areas highly exposed to wind. For some growers, river mists and hail events have added further challenges.

There are still a good number of Waikato blocks in recovery mode as Gold3 grafts develop and young plants replacing Chinensis rootstocks mature.

KVH revisited colder sites where organic Hayward males had severe Psa-V exudate symptoms last spring. Where males were cut back hard to remove infection, regrowth has been excellent. Further pruning rounds to encourage spur growth has resulted in great structure with spurs expected to be very floral for spring 2015. Grafting of older variety males to more Psa-V tolerant varieties continues as a strategy to further reduce site Psa-V risk. Infected female canes within the canopy were being removed during winter pruning.

One of the conventional Hayward sites visited similarly showed the impact of extensive spring infection of males. Previous management of the male vines had failed to focus on height and density reduction, resulting in vigorous and high growth becoming badly affected. An intense spring programme including elicitors, streptomycin and coppers had subsequently been followed. However, the impacts were still seen as many of the leaders remained ring-barked due to the severity of infection. Restructuring of the males was taking place.

KVH also revisited some young organic Gold3 blocks which had significant Psa-V cut-out last spring, sometimes with up to sixty percent of canopy removed.  Stringing had returned these blocks to almost full canopy. To protect this growth, autumn frost-fighting continued through May and early June 2015 as a strategy to reduce risk of frost damage to the young canes. It was thought that autumn frosts in the previous year had provided entry points for Psa-V, leading to spring infection. Observations next spring may help determine the value of this effort.

For the older Gold blocks, new canes continue to be tied in to replace trunks and leaders ring-barked by Psa-V infection (see photo); and where possible, cankered leaders and canes are being pruned out of the canopy as standard practice.

Overall, there appears to be increased use of copper for Psa-V management on organic orchards, with post-harvest and leaf-fall applications recognised as important to reduce the spread of Psa-V through the colder months. Applying copper as soon as possible after pruning is also being emphasised.

Citrox-BioAlexin is being applied across some organic blocks, again to determine whether Psa-V symptoms can be reduced through use of this product.  Organic growers trialling pre-flower girdles on Psa-V affected blocks reported that this practice had definitely reduced flower bud loss, with girdles applied a month out from flowering giving best results. This technique would be used again in 2015.

 

Company Notices
24 July 2015
KVH Annual General Meeting 2015
24 July 2015
KVH Incorporated (KVHI) and The KVH Foundation Incorporated (KVHF) held its Annual General Meeting on Thursday 23 July. All resolutions put forward to the members were approved. Click here to...
KVH Annual General Meeting 2015
24 July 2015

KVH Incorporated (KVHI) and The KVH Foundation Incorporated (KVHF) held its Annual General Meeting on Thursday 23 July. All resolutions put forward to the members were approved.

  • Click here to view the resolutions and their explanations.
  • Click here for all the AGM documents, including the Financial Statements, Chairman’s Report and the KVH Activity Report.
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.

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