Following a pathway review carried out after last summer’s two Queensland Fruit Fly detections in Whangarei, KVH and HortNZ advocated for changes to the way biosecurity is managed on yachts and cruise ships.
As a result MPI have increased the level of intervention on these pathways and are using detector dogs more frequently. Incoming yachts are now under much closer scrutiny, particularly through the high-risk summer season when the number of yachts entering New Zealand increases. Biosecurity detector dogs are being used for the first time on yachts coming in to Opua and Whangarei.
The use of detector dogs on yachts has already shown its value with dogs detecting fruit that had been deliberately concealed on two yachts this year. Concealed fruit would have been unlikely to have been found without the use of dogs, and is an action that puts New Zealand’s horticulture industry at risk. KVH strongly supports MPI pursuing prosecution for these deliberate actions.
Symptomatic leaf samples taken from wild kiwifruit growing in a Te Puke gully have tested Psa-V positive. The wild kiwifruit infestation was found in a gully between Te Puke’s No 1 and No 2 Roads and reported to KVH.
Wild kiwifruit is controlled in the Bay of Plenty through a collaborative programme funded by KVH, the Bay of Plenty Regional Council and landowners. Any wild kiwifruit plants growing near producing orchards are prioritised for control. This reduces risk of transmitting Psa-V inoculum back into commercial orchards.
Thousands of plants are controlled annually, mostly by professional contractors who work methodically through often steep and difficult-to-access infested areas, including native bush and pine forests.
The wild kiwifruit management programme has been a successful example of government and industry cooperation. Fortunately, through previous years of intensive control work, the wild population was significantly reduced when Psa-V was first detected in 2010. This reduction limited the harmful effects of the bacterium establishing in wild plants. Contractors will continue to destroy wild kiwifruit, including in the area where the positive leaves were detected.
People are encouraged to report suspected wild kiwifruit locations to KVH or their local regional council.
Friday 12th December at 3pm at Counties Inn, 17 Paerata Road, Pukekohe
Te Puke, Tauranga and Katikati
Tuesday 16 December at 10am Club Mount, 45 Kawaka Street, Mount Maunganui
Friday 19th December at 10am at The Centre, 43 Cobham Road
Friday 19th December at 2.30pm at A'Fare, 197 Lower Dent Street
Pipfruit NZ has signed the GIA Deed for biosecurity readiness and response, becoming the fourth signatory to the Agreement.
Alan Pollard, Chief Executive of Pipfruit NZ, commented, “We are committed to working with government to deliver the best biosecurity outcomes that we can to protect our growing pipfruit sector.”
Pipfruit NZ has been a key partner, along with KVH, MPI and other horticultural sectors, in developing an Operational Agreement for fruit fly which is expected to be finalised early next year. This operational agreement will set out how readiness and response for fruit fly is managed, by whom and how the costs are shared.
Pipfruit NZ was also involved in the recent response to the recent Yellow Spotted Stink Bug. During the response both KVH and Pipfruit formed part of the Response Strategic Leadership (RSL) group as joint decision-makers with MPI. This response was a good example of how industries will work together with MPI under a GIA agreement.
KVH was the first industry signatory to sign the GIA Deed in May this year. Other signatories to the GIA Deed are the Ministry for Primary Industries and NZPork.
KeyStrepto™ is permitted between 15 December and 28 February on non-producing blocks but growers are advised to take extreme caution to avoid any fruit contamination in neighbouring blocks. Non-producing vines are defined as a non-producing block with shelter or barriers with a low risk of spray drift and must not contain any vines with fruit that will be harvested.
Permission to apply KeyStrepto™ on non-producing blocks will only be given to North Island growers to use on discrete blocks where drift is actively managed to ensure excess spray does not leave the block. KeyStrepto™ cannot be used on non-producing blocks between 28 February and 13 June.
More information is provided in the KeyStrepto™ User Guide on the Canopy and KVH website.
||Producing vines||Non-producing vines|
|13 June–seven days before flowering (male or female)||KeyStrepto™ use allowed without JA||KeyStrepto™ use allowed without JA|
|7 days before flowering (male or female) until the end of flowering||No KeyStrepto™ use permitted||No KeyStrepto™ use permitted|
|Post-flowering–28 February||No KeyStrepto™ use permitted||KeyStrepto™ use allowed with JA|
|28 February–13 June||No KeyStrepto™ use permitted||No KeyStrepto™ use permitted|
This week KVH held a full day workshop to establish KiwiNet, the team that will coordinate the kiwifruit industries’ biosecurity readiness and response activities going forward (see below for an explanation of KiwiNet).
The workshop opened with a presentation of the Sapare Review – Lessons learned from the Psa-V response. This presentation set the scene for the day by providing recommendations of how we as an industry can improve our readiness for the next biosecurity incursion; establishing KiwiNet and developing readiness plans are key steps in achieving this outcome.
The main part of the workshop was about how KiwiNet will work—the responsibilities of the group and the roles of KiwiNet Coordinators within each industry organisation.
As a signatory to GIA (Government Industry Agreements for Biosecurity Readiness and Response), the industry will work closely with the Ministry for Primary Industries (MPI) and other industry signatories in preparing for, or responding to biosecurity incursions going forward.
The workshop covered how this partnership will work, how the industry will make decisions in a response, the roles we need to play across the industry and relative to others and how we will deploy and fund capability for readiness and response activities to match the industry best interests.
Finally, a fruit fly simulation was held to provide a practical context for the discussion. This simulation covered market access at a strategic level with Zespri providing guidance on decisions to consider in a response, and a second part that simulated KiwiNet deploying industry capability into the response.
Click here to view a selection of KVH presentations from the workshop and a copy of the KiwiNet Handbook.
The workshop was attended by members of KVH, NZKGI, Zespri, AsureQuality, MPI, Plant and Food Research and KiwiNet Coordinators from post-harvest organisations. The following post-harvest organisations have nominated a KiwiNet Coordinator:
What is KiwiNet?
KiwiNet is the team of people selected from right across the kiwifruit industry (marketers, post-harvest, growers/NZKGI, key service providers associated with the industry and KVH) who will champion biosecurity readiness. And they will coordinate the deployment of kiwifruit industry resources into biosecurity responses.
KiwiNet exists to reduce the impacts on our industry if/when we face our next major biosecurity incursion, to retain the key lessons from our Psa-V experience and to build on this and to enable a pan-industry approach.
The KVH Board of Directors is very pleased to announce the appointment of Peter Silcock as an Independent Director.
Peter is the Chief Executive of Horticulture New Zealand, the industry representative body for New Zealand’s 5000 commercial fruit and vegetable growers.
The KVH Board believes Peter will make a significant contribution to the strategic approach being pursued by KVH in the area of wider biosecurity risk management for the kiwifruit industry.
Peter’s knowledge and understanding of the commercial horticulture sector in New Zealand is considerable and highly respected by growers, colleagues and government agencies.
The KVH Board welcomes Jarred Mair, MPI’s representative to the KVH Board.
Jarred is the Director of Sector Policy within MPI’s Policy Branch. He leads a team of policy, competition and economic experts to provide advice and economic analysis to support primary sector growth.
Jarred was previously an Associate Director at Deloitte New Zealand leading a team specialising in economic development, strategy and operations, and New Zealand’s primary sector development.
During this period Jarred headed the development of national strategies for Horticulture and Red Meat and developed and implemented several large innovation programmes to transform the performance and structure of New Zealand’s meat sector.
The KVH Board is also pleased to announce Lorry Leydon as its new Associate Director. Lorry’s appointment becomes effective in January 2015.
The selection panel were overwhelmed by the calibre of all the applications and Lorry was selected after a rigorous recruitment process. It was pleasing to recognise many of the industry’s future leaders through this process, indicating the future of the industry is in good hands!
The purpose of this newly created role is to provide a development opportunity for a future leader to gain experience in governance, leadership and strategy while bringing their own industry knowledge to the KVH Board table.
Lorry is a Client Services Manager and Psa Technical Officer at DMS Progrowers Ltd. The KVH Board looks forward to welcoming Lorry to the Board table in January.
Samples of infected Hayward flower buds taken from a site with extensive leaf-spotting and flower-bud browning were tested and showed Psa-V levels of 3.3 x10⁷ on the surface of the flower buds.
This inoculum level is very high and similar to levels used experimentally to inoculate in potted plant trials. The result illustrates potential levels of inoculum in canopies with severe leaf-spotting and the value of effective spray programmes.
Trials continue this season to identify spray programmes that provide efficacy in minimising Psa-V infection through spring. These provide evidence of the value for growers of maintaining a proactive programme to protect vines from leaf and bud infection.
A short video demonstrating the effectiveness of spray applications in Psa-V management compares the health of vines sprayed and unsprayed rows and is available on the ZESPRI Canopy here.
As leaf spot can continue to be an inoculum source, with the edges of spots producing inoculum when high-risk weather conditions favour Psa-V multiplication, continuation of copper spray programmes beyond fruit set are recommended . Copper should be applied at summer rates in response to high-risk weather. An application is recommended following male pruning to protect wounds. Frequency of sprays can reduce as temperatures increase and moisture levels fall reducing Psa-V infection risk.
The KVH Psa-V Risk Model can be used as a guide for growers in planning timing of orchard activities.
KVH staff visited the Opotiki region this week to discuss how Psa-V was progressing in the region this year. Growers generally commented that although leaf spotting had become more prevalent in the last few weeks, the level of flower-bud infection was thought to be lower than last year on both Hayward and G14 orchards visited.
Overall, orchard managers were pleased with the level of Psa-V control being achieved through the use of comprehensive spray programmes despite wetter and colder spring conditions than in past years.
As with other regions, stressed blocks showed higher levels of Psa-V. One very cold block on tough soil showed around 30% flower-bud drop. This illustrates the effects of environmental impacts on disease expression.
Improved orchard drainage (pictured) was seen as an opportunity to improve general vine health and reduce vine susceptibility to Psa-V.
Ambitious has been widely used in the region as part of protective spray programmes and also as a tool to improve overall leaf health. Good results were being achieved on many orchards. Excellent male management has also assured good pollen supply from orchards in the region.
KVH Incorporated (KVHI) and The KVH Foundation Incorporated (KVHF) held its Annual General Meeting on Wednesday 26 November. All resolutions put forward to the members were approved.