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Grower News
7 August 2014
Hydrogen Cyanamide and copper compatibility
7 August 2014
During August the use of Hydrogen Cyanamide (often referred to as Hi-Cane) as a bud-break enhancer increases. It is recommended that copper is not applied within a week either side of the application...
Hydrogen Cyanamide and copper compatibility
7 August 2014

During August the use of Hydrogen Cyanamide (often referred to as Hi-Cane) as a bud-break enhancer increases. It is recommended that copper is not applied within a week either side of the application of a bud-break enhancer to avoid potential phytotoxicity issues.

Growers are reminded that strict conditions apply when using Hydrogen Cyanamide to comply with Council air plans. This includes notifying neighbours at lease 12 hours prior to the application of Hydrogen Cyanamide, clear signage must be displayed at orchard entrance and low-drift spray technology is now compulsary.

Grower News
7 August 2014
Preparing for a high-risk spring
7 August 2014
As a result of the wet autumn and early winter weather experienced in many parts of the country, KVH prepared a ‘forward planning’ paper looking at the possible flow-on effects of a cold,...
Preparing for a high-risk spring
7 August 2014

As a result of the wet autumn and early winter weather experienced in many parts of the country, KVH prepared a ‘forward planning’ paper looking at the possible flow-on effects of a cold, wet spring.

The paper was based on learnings from experiences in France during the spring of 2013-14 and was discussed at the recent KVH board meeting. A number of recommendations were made about how we could better assist the industry should we see similar conditions in New Zealand this spring.

  • Click here for a copy of the KVH Board Paper
Biosecurity News
7 August 2014
National Science Challenge
7 August 2014
In May last year the government announced a new direction for science investment by establishing ten ‘National Science Challenges’. The National Science Challenges are established to...
National Science Challenge
7 August 2014

In May last year the government announced a new direction for science investment by establishing ten ‘National Science Challenges’. The National Science Challenges are established to tackle some of the biggest science-based issues and opportunities facing New Zealand and take a more strategic approach to science investment.

One of the National Science Challenges—New Zealand’s Biosecurity Heritage—is of particular interest to the horticulture sectors as it will direct future investment in both biosecurity and biodiversity research.

MBIE have recently approved the 10-year research plan and allocated new funding of $25.8m for the first five year period.

The research undertaken in this Challenge will be designed to protect and manage New Zealand’s biodiversity, improve biosecurity and enhance the country’s resilience to harmful organisms.

A broad range of stakeholder industries, including KVH, HortNZ and New Zealand Wine Growers, were involved in the development of this challenge and preparation of the research plan. This was through representation on a focused stakeholder advisory group and stakeholder workshops.

KVH and other horticultural sectors will continue be actively engaged. KVH Chief Executive, Barry O’Neil has been appointed to the Governance Group; and KVH Biosecurity Programmes Manager, Andrew Harrison is part of the Industry Advisory Group.

  • Click here for more information about the New Zealand’s Biosecurity Heritage challenge.
  • Click here for more information about the National Science Challenge.
Grower News
7 August 2014
New R&D report on KVH website
7 August 2014
2013/14 Potted Plant Field Trial Report - Elicitors on Gold3 Potted Plants This trial was established to determine the efficacy of a range of elicitors and CPPU products in inducing a plant immune...
New R&D report on KVH website
7 August 2014

2013/14 Potted Plant Field Trial Report - Elicitors on Gold3 Potted Plants

This trial was established to determine the efficacy of a range of elicitors and CPPU products in inducing a plant immune response to Psa-V, using Gold3 potted plants. All of the elicitors significantly reduced leaf spot in Gold3.

None of the elicitors significantly reduced secondary symptoms, although secondary symptom expression was low in this trial.

Click here to view the report.
 

Grower News
7 August 2014
Importance of recording spray applications
7 August 2014
Last week the KVH Bulletin (31 July) highlighted a number of orchards throughout New Zealand that had not applied a Psa-V protectant spray during the last growing season. Spray Diary analysis is...
Importance of recording spray applications
7 August 2014

Last week the KVH Bulletin (31 July) highlighted a number of orchards throughout New Zealand that had not applied a Psa-V protectant spray during the last growing season.

Spray Diary analysis is currently being carried out by industry; and it’s important to remember there is real value gained from the analysis of spray patterns. However, if all sprays are not recorded, it gives industry an inaccurate picture. Furthermore, in the event of an issue arising from a spray application, an accurate Spray Diary record is an invaluable tool to help identify how and why the issue occurred.

Under the rules of the Zespri Crop Protection Standard (CPS) all applications of agricultural compounds must be recorded in the Spray Diary. This includes applications to the orchard floor and shelter.

Growers should ensure all sprays applied post-harvest are recorded in the Spray Diary, along with all sprays applied to crops going forward.
 

Grower News
7 August 2014
Psa-V symptoms in Bay of Plenty male vines
7 August 2014
This week some Bay of Plenty growers have reported exudate symptoms in their male Hayward vines.  Often observations by pruning teams have triggered monitoring rounds where these have been...
Psa-V symptoms in Bay of Plenty male vines
7 August 2014

This week some Bay of Plenty growers have reported exudate symptoms in their male Hayward vines.  Often observations by pruning teams have triggered monitoring rounds where these have been found.

Many monitored blocks appear free of symptoms. However, in other blocks symptoms range from just a few vines with exudate to a high number of vines with exudate, particularly in blocks with Matua males.

This symptom increase in symptoms is likely due to increased sap flow as spring approaches. Growers are recommended to begin directed monitoring rounds focussing on higher risk plants (i.e. males, young, stressed) and orchard areas with less favourable growing conditions.

Cutting out infection, followed by bagging and removal of infected material from the orchard, is recommended to avoid inoculum build-up on orchard. Growers are urged to plan a proactive spring spray programme to minimise the chances of infection resulting in leaf spot and bud infection later in the season.

Some Gold3 cane collapse is also being seen on orchards. Again, cutting out infected material coupled with a proactive spray programme is recommended.

R&D News
7 August 2014
New R&D report on KVH website
7 August 2014
2013/14 Potted Plant Field Trial Report - Elicitors on Gold3 Potted Plants This trial was established to determine the efficacy of a range of elicitors and CPPU products in inducing a plant immune...
New R&D report on KVH website
7 August 2014

2013/14 Potted Plant Field Trial Report - Elicitors on Gold3 Potted Plants

This trial was established to determine the efficacy of a range of elicitors and CPPU products in inducing a plant immune response to Psa-V, using Gold3 potted plants. All of the elicitors significantly reduced leaf spot in Gold3.

None of the elicitors significantly reduced secondary symptoms, although secondary symptom expression was low in this trial.

Click here to view the report.
 

Grower News
31 July 2014
Importance of keeping spray diaries up to date
31 July 2014
Under the National Psa-V Pest Management Plan (NPMP) growers in all regions are required to apply protective spray products with proven efficacy against Psa-V to their vines. KVH, in conjunction...
Importance of keeping spray diaries up to date
31 July 2014

Under the National Psa-V Pest Management Plan (NPMP) growers in all regions are required to apply protective spray products with proven efficacy against Psa-V to their vines.

KVH, in conjunction with Zespri, have analysed grower spray diaries for the 2013–2014 season and it appears a number of orchards have not applied a protective spray product (see graph above). It is possible that some sprays, particularly through the dormant period, have not been entered in the spray diary.

It is important spray diaries are kept up to date and include all sprays applied to an orchard over the entire growing season.  KVH will follow up with orchards that don’t appear to be applying protective sprays.
 

Protocols & Movement Controls
31 July 2014
First certified kiwifruit plants available
31 July 2014
Certified kiwifruit plants under the ‘Core Standard’ of the Kiwifruit Plant Certification Scheme (KPCS) are now available for growers to order. The first two nurseries selling KPCS...
First certified kiwifruit plants available
31 July 2014

Certified kiwifruit plants under the ‘Core Standard’ of the Kiwifruit Plant Certification Scheme (KPCS) are now available for growers to order.

The first two nurseries selling KPCS certified plants are now listed on the KVH website. Two more nurseries also being audited under the Core Standard are awaiting testing results and are expected to be included on this list shortly.

A list of kiwifruit nurseries including those who are now part of the KPCS, is available on the KVH website here. Purchasing certified plants gives growers assurance they are investing in the best possible start for their new vines. Growers are reminded to order plants well in advance to ensure that nurseries can meet industry demands.
 

Company Notices
31 July 2014
Independent Sapere report - Psa-V lessons learnt
31 July 2014
KVH have engaged Sapere, an independent organisation to develop a report on the industry response to the Psa-V incursion, including lessons learnt and potential future improvements. The findings and...
Independent Sapere report - Psa-V lessons learnt
31 July 2014

KVH have engaged Sapere, an independent organisation to develop a report on the industry response to the Psa-V incursion, including lessons learnt and potential future improvements. The findings and recommendations from the report will be used for future biosecurity planning.

A number of key industry people have been identified to potentially assist Sapere with the report and these people will be contacted in due course.

KVH will keep industry updated with the development of the report and will publish once complete.
 

Biosecurity News
31 July 2014
Detector dogs at Auckland Biosecurity Centre
31 July 2014
Last week KVH staff visited the Auckland Biosecurity Centre to see first-hand MPI’s detector dog programme. MPI have their own detector dog breeding programme which is a cost effective way...
Detector dogs at Auckland Biosecurity Centre
31 July 2014

Last week KVH staff visited the Auckland Biosecurity Centre to see first-hand MPI’s detector dog programme.

MPI have their own detector dog breeding programme which is a cost effective way of producing fit for purpose biosecurity detector dogs. The breeding programme now has 40 dog teams operating throughout New Zealand at various ports of entry.

MPI now have detector dogs at all cruise ship first port of arrivals and many second port of arrivals. Detector dogs are now used to screen disembarking passengers from 150 cruise ships. This has resulted in the seizure of 500 risk items, of which 76 percent was fresh produce (of particular concern given its capacity to host fruit fly).

Detector dogs have been a fundamental component of biosecurity interventions at the border for many years. MPI is now also working to train a new line of dogs for a different purpose, post-border incursions. These incursion dogs can be used in the field and trained to detect any pest and may be especially useful for pests for which there are no pheromone traps available.
 

Photo: Darcy, a three month old beagle from the breeding programme who is likely to become a biosecurity detector dog.

Biosecurity News
31 July 2014
Review of NZ Import Requirements for kiwifruit pollen
31 July 2014
Following the discovery of Psa-V in New Zealand in 2010, the Import Health Standard (IHS) for pollen was immediately amended by the Ministry for Primary Industries (MPI) to prohibit the import of...
Review of NZ Import Requirements for kiwifruit pollen
31 July 2014

Following the discovery of Psa-V in New Zealand in 2010, the Import Health Standard (IHS) for pollen was immediately amended by the Ministry for Primary Industries (MPI) to prohibit the import of kiwifruit pollen. To date, the importation of pollen into New Zealand remains prohibited as the potential risk of introducing further variants of Psa-V and other pathogens is unknown.

After KVH raised concerns about the possibility of Psa-V impacting male kiwifruit vines and creating a pollen shortage, MPI was asked if there was a safe way to import pollen.

MPI sought input from a Technical Working Group made up of experts from the kiwifruit (incl. KVH, Zespri and other independents), bee and pollen industries. The aim of this Working Group and subsequent MPI analysis was to determine the risk posed by imported pollen; and the potential to import it, preferably in emergency situations only (e.g. if there were to be a significant shortage of pollen in New Zealand).

MPI have drafted an assessment of the potential for Psa to be associated with imported pollen and the potential consequences if Psa (Psa-V or other variants) was to enter and establish in New Zealand. Other pathogens which may also be associated with imported pollen, and which may impact on the kiwifruit or bee industries have been identified by MPI, but have not yet been assessed.

Following a meeting of the Working Group in mid-July, MPI is currently concluding its assessment of Psa and KVH expects an update on the assessment from MPI in the next couple of weeks. KVH believes it is very unlikely this process will result in the imported pollen ban being lifted as other pathogens associated with pollen still require careful assessment.

While New Zealand does not currently have a pollen shortage, a bad Psa year could possibly impact future pollen supply.

Therefore its essential growers plan ahead for future pollination requirements.

  • Manage your male vines—develop low-vigour growing systems
  • Assess the health of your male vines—diseased males can impact future pollination requirements
  • Detecting diseased males early will allow time to assess your future pollination requirements
  • If males need to be cut out, ensure you have a plan for future pollination requirements
  • Order pollen early from KVH-registered pollen providers for future pollination requirements
  • Arrange harvest of early flowers for pollen milling wherever possible
  • Store pollen for next season wherever possible
  • Graft to more Psa-tolerant varieties
  •  

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