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Company Notices
15 June 2017
AGM reminder
15 June 2017
KVH’s Annual General Meeting (AGM) will commence at 9am on Thursday August 24, 2017, at the ASB Arena in Mount Maunganui. This is a public meeting and anyone who is interested is most welcome...
AGM reminder
15 June 2017

KVH’s Annual General Meeting (AGM) will commence at 9am on Thursday August 24, 2017, at the ASB Arena in Mount Maunganui. This is a public meeting and anyone who is interested is most welcome to attend.

The NZKGI and Zespri AGMs will follow immediately afterwards. 

Grower News
15 June 2017
Fieldays
15 June 2017
KVH has enjoyed a busy start to the annual National Fieldays.  Growers visiting our stall within the Zespri tent have shown a strong interest in biosecurity issues and the lunchtime sessions...
Fieldays
15 June 2017

KVH has enjoyed a busy start to the annual National Fieldays. 

Growers visiting our stall within the Zespri tent have shown a strong interest in biosecurity issues and the lunchtime sessions with short addresses from Zespri, KVH and NZKGI have been well-attended.

KVH is also working with other horticulture organisations to take the opportunity to catch up with importers of tractors and other machinery, to ensure they are aware of the risk of Brown Marmorated Stink Bug (BMSB) and the protocol to follow if they find the pest on any of their shipments.

Chief Executive Barry O’Neil and other KVH staff will be based in the Zespri tent at Mystery Creek again tomorrow – please drop in and say hello. 

Grower News
15 June 2017
Nelson growers meeting
15 June 2017
Mainland Kiwi have organised a meeting to discuss potential pathways for new variety kiwifruit plant material to enter the South Island.  All South Island kiwifruit growers are urged to attend...
Nelson growers meeting
15 June 2017

Mainland Kiwi have organised a meeting to discuss potential pathways for new variety kiwifruit plant material to enter the South Island.  All South Island kiwifruit growers are urged to attend this important meeting.

Bryan Parkes from Zespri will be presenting potential pathways and Barry O’Neil from KVH will also present to growers. 

It is important that growers are fully briefed on any potential pathways and there is a strong grower mandate before any further steps are taken.

The meeting will be at the Top 10 Holiday Park conference room, 10 Fearon Street, Motueka on Thursday 22 June at midday. 

R&D News
15 June 2017
Fresh research added to KVH website
15 June 2017
Research supports the value of applying winter coppers in managing Psa. A research project has determined the source of leaf inoculum in Hayward from bud-break to senescence and shows Psa can be...
Fresh research added to KVH website
15 June 2017

Research supports the value of applying winter coppers in managing Psa.

A research project has determined the source of leaf inoculum in Hayward from bud-break to senescence and shows Psa can be found on both the outside of winter buds and within the buds themselves as they expand in Spring. Read more here.

In a linked project, molecular tools detected overwintering Psa on kiwifruit vines and quantified levels of inoculum before and after application of winter copper sprays. Copper was shown to reduce the overwintering Psa inoculum load on the vines. This research shows winter coppers reduce populations of Psa that we cannot see but which we know contribute to the Psa disease cycle. Read more here.

Research backing kiwifruit management strategies.

Two further reports added to the KVH website this week illustrate the value of research in improving understanding of orchard management best practice.

A pre-flower girdling study showed girdling vines 30 days before flowering resulted in significantly less bud rot than in non-girdled vines. This was the case for both Hayward and Green 14 vines. The research also found Psa to be the dominant microbial species and most likely cause of infected buds. Read more here.

In a study to better understand how root pruning may impact vine susceptibility to Psa, metabolites found in leaves following root pruning were studied. Increased concentrations of procyanidin metabolites were seen and further work is under way to see if this is part of a disease response within the vine.  This response is similar to that observed by others studying metabolic responses of plants to stress. Read more here. 

Biosecurity News
15 June 2017
Dutch kiwifruit grower reaches out for Psa assistance
15 June 2017
The Netherlands’ first kiwifruit grower has reached out to the New Zealand industry for advice in dealing with possible Psa symptoms. Multi award-winning Dutch businesswoman and...
Dutch kiwifruit grower reaches out for Psa assistance
15 June 2017

The Netherlands’ first kiwifruit grower has reached out to the New Zealand industry for advice in dealing with possible Psa symptoms.

Multi award-winning Dutch businesswoman and horticulturalist Djûke van der Maat grows half a hectare of northern Italian variety Greenlight and Tomori male at her family’s 28-hectare diversified farm in Bunnik, The Netherlands.

Djûke is a participant in this year’s Rabobank Global Farmer Master Class programme alongside grower Trish Jones. When Djûke discovered red exudate and shoot and cane wilt, she contacted Trish and her husband Paul for advice. They provided support and approached KVH and respected growers for additional information and insight.

The affected vines were immediately removed. KVH provided information on copper products and best practice. As the orchard was close to flowering, a low rate copper spray was advised. However implementation of the suggested products is difficult, because of availability and application regulations.

Test results are due back from a laboratory next week. Three weeks prior to discovery of the symptoms, the area had been hit by a severe frost. Temperatures on the site dropped to -7 degrees Celsius. Djûke uses frost pots but it is likely there was a degree of frost damage and some of those New Zealand growers who have been talking to Djuke thought there was a chance the frost could be to blame for the symptoms. Djûke is still hopeful that frost may turn out to be the cause. 

Biosecurity News
15 June 2017
KVH presents to Maori Kiwifruit Grower Forum
15 June 2017
Yesterday the Maori Kiwifruit Grower Forum was officially launched to advocate on behalf of these growers and ensure they are well informed of key issues. Biosecurity is one such issue and KVH...
KVH presents to Maori Kiwifruit Grower Forum
15 June 2017

Yesterday the Maori Kiwifruit Grower Forum was officially launched to advocate on behalf of these growers and ensure they are well informed of key issues.

Biosecurity is one such issue and KVH presented to the group to seek their support in our bid for Environmental Protection Agency (EPA) approval to release a biocontrol agent, should one day the Brown Marmorated Stink Bug (BMSB) establish in New Zealand.

BMSB is a significant threat to kiwifruit and horticultural industries given that it is highly likely to enter our borders and establish here, causes significant impacts to horticultural industries and also to the public by infesting their homes, and is extremely difficult to control requiring frequent applications of toxic insecticides.

However, in countries where BMSB is native, a biocontrol exists that keeps BMSB populations in check by parasitising their eggs. This is the Samurai midge (Trissolcus japonicus) which has been the subject of intense research and host testing in both New Zealand and the USA to determine its suitability as a biocontrol agent. This process is nearly complete and we hope to have an EPA decision by September of this year. 

Biosecurity News
15 June 2017
BMSB readiness update
15 June 2017
While a biocontrol agent is considered the most effective control tool against Brown Marmorated Stink Bug (BMSB), KVH is also working closely with Zespri to ensure that we are doing everything we can...
BMSB readiness update
15 June 2017

While a biocontrol agent is considered the most effective control tool against Brown Marmorated Stink Bug (BMSB), KVH is also working closely with Zespri to ensure that we are doing everything we can across the supply chain to reduce the impact of this pest.

KVH and Zespri have established a working group to progress a Kiwifruit BMSB Readiness Plan. This plan identifies activities to mitigate impacts of BMSB across the supply chain and has an associated workplan to ensure these activities become viable in the near future.

The workplan has been given a high priority in both organisations and the readiness plan is expected to be largely complete with only long-term research and development outstanding, by September this year.

A simulation will be held before the next high-risk period, to test the practicalities of this plan with KiwiNet, our industry biosecurity champions. 

Biosecurity News
15 June 2017
Myrtle rust in Te Puke
15 June 2017
KVH is helping mobilise support for experts determining the extent of the myrtle rust incursion in Te Puke. A Te Puke woman contacted the Ministry for Primary Industries (MPI) to report myrtle...
Myrtle rust in Te Puke
15 June 2017

KVH is helping mobilise support for experts determining the extent of the myrtle rust incursion in Te Puke.

A Te Puke woman contacted the Ministry for Primary Industries (MPI) to report myrtle rust-like symptoms on a ramarama tree on her property.

KiwiNet received a request from AsureQuality and MPI to provide resources to assist with the response in the Te Puke area. We were happy to oblige, had a good response from our networks and were pleased to have been able to provide the resources required.

Myrtle rust is a fungal infection that can travel long distances in the wind and attacks plants of the Myrtaceae family. It doesn’t affect kiwifruit but could affect iconic New Zealand plants like pōhutukawa, kānuka, mānuka and rātā, as well as commercially-grown species such as eucalyptus, guava and feijoa.

Although myrtle rust doesn’t affect kiwifruit vines, growers will want to check any Myrtaceae plants on their property.

Look for:
• bright yellow powdery eruptions appearing on the underside of the leaf (young infection)
• bright yellow powdery eruptions on both sides of the leaf (mature infection)
• brown/grey rust pustules (older spores) which can appear on older lesions
• buckled or twisted leaves which may die off.

If you see any of these symptoms, call MPI immediately on 0800 80 99 66. Take a photo but don’t touch or take samples as this might increase spread of the disease.

This discovery should not impact movement of kiwifruit plants from nurseries unless they are growing or selling myrtle rust host material (Myrtaceae species).  Those nurseries need to follow the myrtle rust protocols for nurseries on the New Zealand Plant Producers Inc (NZPPI) website.

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