Search Site

Newsroom

Print these articles
Protocols & Movement Controls
30 October 2014
Coromandel reclassified as Recovery region
30 October 2014
As a result of the increasing number of confirmed Psa-V positive orchards in the wider Coromandel region, the KVH Board has made the decision to reclassify the region from Containment to...
Coromandel reclassified as Recovery region
30 October 2014

As a result of the increasing number of confirmed Psa-V positive orchards in the wider Coromandel region, the KVH Board has made the decision to reclassify the region from Containment to Recovery.

Psa-V was first identified in the Coromandel region in September 2012.
The NPMP defines a Recovery region as a region with widespread Psa-V infection. The Coromandel region currently has more than 65% of kiwifruit hectares on orchards with Psa-V identified.

The KVH Board, while having empathy with Coromandel growers who did not support this change, had to consider the rules of the NPMP and the need to move pollen into the region for the upcoming pollination season.

Biosecurity News
30 October 2014
Brown Marmorated Stink Bug (BMSB)
30 October 2014
MPI have released a new fact sheet for BMSB which includes comparison to other stink bugs already present in New Zealand. Click here to view the fact sheet. This fact sheet is part of a larger...
Brown Marmorated Stink Bug (BMSB)
30 October 2014

MPI have released a new fact sheet for BMSB which includes comparison to other stink bugs already present in New Zealand. Click here to view the fact sheet.

This fact sheet is part of a larger public awareness campaign that KVH is supporting. Growers who have travelled internationally recently will have noticed the increased publicity at the airport.

KVH has also participated in the development of a research strategy to minimise and manage the risks posed by BMSB to New Zealand.

What is Brown Marmorated Stink Bug?
BMSB is a significant pest to many horticultural industries. It is native to parts of Asia but is currently undergoing rapid range expansion in the United States, Canada and Europe—which previously did not have established populations.

BMSB is considered a high priority pest as;

  • it would have significant impact on high value crops;
  • it can establish throughout New Zealand;
  • there are multiple pathways for entry;
  • there are limited control tools available; and
  • it causes significant public nuisance.

Growers are encouraged to look out for this organism. Any suspected sightings should be caught, photographed and reported to MPI on 0800 80 99 66.
 

Biosecurity News
23 October 2014
Cancellation of Rotorua international flights
23 October 2014
The cancellation of trans-Tasman international flights in and out of Rotorua Airport means there is one less biosecurity risk pathway into New Zealand. Since the trans-Tasman flights started in...
Cancellation of Rotorua international flights
23 October 2014

The cancellation of trans-Tasman international flights in and out of Rotorua Airport means there is one less biosecurity risk pathway into New Zealand.
Since the trans-Tasman flights started in 2009, Rotorua Airport has been a potential entry pathway for biosecurity risks into New Zealand. Of particular concern was the risk of importing Queensland Fruit Fly from Australia directly into the Bay of Plenty.

Last year KVH completed a preliminary review of border interventions at Rotorua Airport to ensure potential biosecurity risks to the kiwifruit industry were being managed appropriately. While KVH was satisfied with the level of biosecurity intervention on this pathway, the cancellation of the flights eliminates this risk altogether and enables MPI resources to be applied to managing other pathways.

Rotorua Airport will cancel its international air service from the end of April 2015.

  • Click here to read the full article in the Rotorua Daily Post
  • Click here to read the preliminary review by KVH last year
  •  
Grower News
23 October 2014
Frost devastates Chilean crops again
23 October 2014
Chilean growers have been dealt another significant blow after frosts last week devastated crops for the second year in a row. One large producer estimates between 80-100% crop loss on some kiwifruit...
Frost devastates Chilean crops again
23 October 2014

Chilean growers have been dealt another significant blow after frosts last week devastated crops for the second year in a row. One large producer estimates between 80-100% crop loss on some kiwifruit orchards.

The frosts, which were “completely unexpected” came roughly one year after severe frost wreaked havoc on almost the entire Chilean agricultural industry last year. Many growers did not have their frost protection systems turned on as the weather had been so mild. 

  • Click here to read the full article on Fresh Fruit Portal.
Grower News
23 October 2014
KVH visits Whanganui orchards
23 October 2014
This week KVH visited twelve orchards in the Whanganui region and also held a meeting with local growers to discuss best practice Psa-V management strategies and to provide latest research...
KVH visits Whanganui orchards
23 October 2014

This week KVH visited twelve orchards in the Whanganui region and also held a meeting with local growers to discuss best practice Psa-V management strategies and to provide latest research information.

All growers in the region had good monitoring programmes in place. Results from these show some spring progression within previously affected orchards. Levels of infected male vines remain below 10 percent with cane dieback and exudate being the symptoms observed. Minimal numbers of female vines are showing any infection.

Severe spring wind, and for some, recent hail events, have provided challenging growing conditions and proactive spray programmes, cut out of infection as it is found and good orchard hygiene procedures is likely to have minimised infection spread to date.

No leaf spot was evident. However, some bud browning was seen on one Psa-V positive site.

Shelter and adequate pollination are seen as challenges in this region. Notch-grafting of older male varieties has begun. Successful results from December 2013-grafted males, has resulted in growth which will contribute to pollination this year.

This region previously had two unmanaged sites recorded, and each of these sites were visited. One of these blocks has now been removed and the other has been returned to management.
 

Grower News
23 October 2014
Avoid below-label use of Psa-V products
23 October 2014
Using products at lower than the recommended label rates can increase the risk of resistance developing, and has been implicated as a factor in cases of resistance to disease in other crops. Given...
Avoid below-label use of Psa-V products
23 October 2014

Using products at lower than the recommended label rates can increase the risk of resistance developing, and has been implicated as a factor in cases of resistance to disease in other crops.

Given the limited control options available, it is important the kiwifruit industry use the tools that are available appropriately. This will maximise the useful life of the products. To reduce the risk of resistance, it is very important that the label instructions, including label rates are followed.

On-going use of products outside label recommendations risks ACVM reviewing copper label approvals.

The use of KeyStrepto™ at less than label rates is illegal, and must not occur in any circumstances.

Growers who are concentrate spraying need to adjust product rates to ensure correct rates are applied.

Grower News
23 October 2014
Leaf spot season
23 October 2014
Low levels of leaf spotting within some orchards in the Bay of Plenty region have been reported over the last week. Sepal browning is being reported for some blocks historically vulnerable to bud...
Leaf spot season
23 October 2014

Low levels of leaf spotting within some orchards in the Bay of Plenty region have been reported over the last week. Sepal browning is being reported for some blocks historically vulnerable to bud infection. Leaf spot symptoms are traditionally seen this time of year—often appearing after periods of wet weather and particularly if these are also associated with wind and cold conditions.

Research has shown that a good protective spray programme helps minimise leaf spot symptoms, reducing inoculum build-up within orchards. Maintain copper cover, and in high-risk situations the use of KeyStrepto™, is highly recommended at this time to avoid build-up of orchard inoculum levels.  Actigard™ provides further support by eliciting the vine’s defence system through this critical pre-flowering period.

Growers intending to trunk girdle as an additional tool against flower bud and flower infection are recommended to leave some un-girdled vines, to allow measurement of the value of this tool on their individual site. Click here for Zespri’s methodology on the Canopy.
 

Grower News
23 October 2014
Tri-base Blue and Champ DP removed from recommended product list
23 October 2014
Copper protectant products Tri-Base Blue® and Champ™ DP have been removed from KVH’s recommended product list (below) as their use period from post-harvest to leaf-fall and then...
Tri-base Blue and Champ DP removed from recommended product list
23 October 2014

Copper protectant products Tri-Base Blue® and Champ™ DP have been removed from KVH’s recommended product list (below) as their use period from post-harvest to leaf-fall and then through dormancy has ended. 

Protocols & Movement Controls
23 October 2014
Pollen providers and distributers to register with KVH
23 October 2014
Pollination is the next key activity on the kiwifruit calendar and movement controls apply for both pollen and beehives. All pollen providers and distributors of pollen are required to register with...
Pollen providers and distributers to register with KVH
23 October 2014

Pollination is the next key activity on the kiwifruit calendar and movement controls apply for both pollen and beehives.

All pollen providers and distributors of pollen are required to register with KVH and growers should only be sourcing pollen from these registered providers—click here for the registered lists.

For more information about pollination movement controls and/or to register with KVH please visit www.kvh.org.nz/beekeepers.
 

Grower News
23 October 2014
Good result following North-West Auckland monitoring
23 October 2014
Last week KVH completed a round of monitoring in the North-West Auckland region. The region is currently classified as an Exclusion region with a Controlled Area in place. Seven orchards were...
Good result following North-West Auckland monitoring
23 October 2014

Last week KVH completed a round of monitoring in the North-West Auckland region. The region is currently classified as an Exclusion region with a Controlled Area in place.

Seven orchards were inspected and samples were taken from three orchards. All tests were confirmed ‘Not Detected’.

There is one positive orchard in the region—confirmed in November 2013. The Hort16A on this orchard was removed immediately following the positive test and stump-grafted to Gold3.There are no signs of further Psa-V infection on this orchard.

North-West Auckland growers are maintaining good protectant programmes hygiene. Only one Hort16A orchard remains and this has been notch-grafted to Gold3.
 

Grower News
16 October 2014
KeyStrepto out of stock
16 October 2014
Key Industries, the New Zealand supplier of KeyStrepto™ have advised there is currently no stock of KeyStrepto™ available for kiwifruit growers due to demand far exceeding supply. Zespri,...
KeyStrepto out of stock
16 October 2014

Key Industries, the New Zealand supplier of KeyStrepto™ have advised there is currently no stock of KeyStrepto™ available for kiwifruit growers due to demand far exceeding supply. Zespri, KVH and retailers have been working with Key Industries to secure more supply as soon as possible. The shortage is due to offshore production constraints, not transportation.

As a result, it appears unlikely sufficient KeyStrepto™ supplies will be available to the kiwifruit industry before flowering this season.
Growers should re-consider their Psa-V control plan and ensure alternative control products are used.

Alternative Psa-V control products allowed pre-flowering include:

Growers should not consider using Kasumin® as a replacement for KeyStrepto™. Kasumin® has been removed from the Zespri Crop Protection Programme for the 2015 season while further research is done to confirm the most effective use pattern. This work is expected to confirm the optimal pre-flowering withholding period for Kasumin® and the number of applications allowed in the pre-flowering period.

Grower News
16 October 2014
Flower bud infection symptoms in high-risk Hayward orchards
16 October 2014
Symptoms of female flower bud infection are being seen on some Hayward orchards which suffered bud-rot in previous years. Brown discolouration of sepals and fine droplets of moisture on the surface...
Flower bud infection symptoms in high-risk Hayward orchards
16 October 2014

Symptoms of female flower bud infection are being seen on some Hayward orchards which suffered bud-rot in previous years. Brown discolouration of sepals and fine droplets of moisture on the surface of the buds are likely indications of Psa-V presence. These symptoms may not necessarily have obvious leaf spot associated with them. Within the same blocks, presence of red exudate on terminal buds, collapsed shoots and infected buds on the ends of female canes are other signs of Psa-V.

Growers are recommended to preferentially remove infected buds in pre-flower thinning rounds, cut back infected canes, continue with a protective spray programme and consider a pre-flowering girdle to help with bud-rot control.

Recommended timing for a pre-flower girdling for bud-rot control is 16-30 days pre-flowering so growers should plan for this now.

All growers are urged to measure impacts of this treatment on their site. Leave some control vines amongst girdled areas or alternatively, girdle only a few vines within high-risk blocks and measure flower-to-fruit retention for treated and control vines. A methodology to assist growers has been developed by the Zespri OPC team.

Tool hygiene is essential when pruning and/or girdling within these blocks.

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