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PSA RESEARCH AND DEVELOPMENT

PSA RESEARCH AND DEVELOPMENT

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Psa Case Studies

This page has case study information from the field about Psa observations.

Lessons learned from Psa-V incursions to new regions in 2012

Lessons learned from Psa-V incursions to new regions (Waikato, Hawke's Bay, Gisborne, Coromandel and Kerikeri) in 2012. Observations and case studies provided information on the spread of the bacteria within these regions and built understanding about the patterns of infection and expression of the disease.

Lessons learned from Psa-V incursions to new regions in 2012 (28.03.13)


Pathway assessment tracing Psa-V entry and spread in the Waikato

Pathway assessment tracing Psa-V entry and spread in Te Awamutu, Karapiro and Paeroa.

On 20 August 2012, KVH was notified of a positive Psa-V result in Te Awamutu in the South Waikato region. A second neighbouring orchard was confirmed positive the next day. At the first notification of a positive result, KVH senior technical staff visited the affected orchard to confirm symptoms. KVH initiated a pathway assessment into the Waikato region incursions.

Pathway assessment tracing Psa-V entry and spread in Waikato (28.03.13)


Psa-V in kiwifruit - bacterial disease comparison in stonefruit and citrus

To help the industry better understand management and cultural practices to control Psa-V, a comparison between Psa-V in kiwifruit and other bacterial diseases in the stonefruit and citrus industries was prepared by KVH.

Bacterial disease comparison in stonefruit and citrus (15.11.12)


A19 orchards (Enza Gold) in a Psa-V environment

KVH conducted a field summary on the performance of two non-Zespri variety A19 orchards (Enza Gold), in a Psa-V environment.

A19 (Enza Gold) case study (16.08.12)


Psa-V positive Hort16A orchards in Te Puke - key factors in reaching harvest

KVH conducted a case study about 57 Hort16A Te Puke KPINS confirmed Psa-V positive in 2011. Only six of these KPINS made it to the 2012 harvest, highlighting how few were able to achieve a crop.

The case study includes a video interview with Te Puke growers Barry Roderick, Ken Edkins and Robbie Ellison.

Hort16A case study (03.08.12)

Hort16A case study video with the three growers studied (03.08.12)


Franklin Psa-V traceback report

Following the first notification of a positive Psa-V result on an orchard in Franklin (South Auckland) KVH initiated a routine traceback investigation involving assessing known pathways for the wider-spread of Psa-V into new regions.

Franklin Psa-V trace-back report (10.05.12)


Routine orchard monitoring with Alan Thorn, Aongatete, Katikati

Routine orchard monitoring is essential for early Psa-V detection. This case study interview by KVH highlights the importance of orchard observation, preparedness and protectant programmes.

Click here to read the article published in Kiwifruit Journal, Psa Scientific Edition, March/April 2012.


Wild Fire Orchards

In early August 2011 KVH investigated 35 orchards in the Te Puke region to determine why some orchards showed more severe levels of Psa-V infection than others. Strung canopies appeared to be a common factor amongst the most severely affected orchards.

Wild Fire Orchards report (September 2011).


Putting the KVH 2011 winter management programme into practice

A case study from Colin Jenkins, General Manager Ngai Tukairangi Trust, Matapihi, Mount Maunganui.

Click here to read the article published in Kiwifruit Journal July/August 2011 (Issue no. 206).

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LATEST NEWS

12 Oct 2021

Ko Tātou This Is Us

Every New Zealander has a role to play in preventing pests and diseases from getting here or helping to stop their spread if they do arrive. It takes all of us to protect what we’ve got. KVH produces resources that help every person with a connection to the kiwifruit industry know that they also have a special role in managing the threat of unwanted pests and diseases. Sydney Hines, Sybton Hort - biosecurity best practice ensures longevity of production Steve Thomas, Thomas Bros - good biosecurity means we will spot the new and unusual quickly. Campbell Wood, Pivot Horticulture - biosecurity is part of day-to-day best business practice.Darshan Singh, grower and Hume Pack-N-Cool - biosecurity protects our family orchards for future generations. Kiwifruit community biosecurity booklet - guidance about how everyone in or close to the kiwifruit community can help identify biosecurity risks and address them. Tauranga Moana Biosecurity Capital (TMBC) This is a collaboration between Tauranga Moana iwi, local industries and business, science institutions, educators, central and local government. Its purpose is leading and taking collaborative action towards biosecurity excellence. This coalition is an exemplar for regional collaboration and partnership. Our TMBC focus is on working connecting our communities to the importance of biosecurity; and building collaboration across iwi, hapu, community organisations, industries, science and Matauranga Māori experts, central government and local government to achieve biosecurity excellence. Visit the TMBC website to learn more. Biosecurity Excellence at the Port of Tauranga This award-winning partnership between the Port, several primary industries, and central and local government agencies to prevent and respond to biosecurity risks through the Port of Tauranga. All groups have come together with the goal of having no incursions through the Port. This is achieved by working collaboratively and being committed to biosecurity excellence, through effective biosecurity awareness and the use of the very best tools and technologies, backed by science. This partnership is an exemplar of collaboration within a region, where a Port, a regulator and industry all work together. Excellence programme's pest posters Excellence programme's annual pest pest calendar September 2024 - August 2025Excellence programme's most unwanted pests playing cardsFrontline staff "spot, snap, report" lunch bags Excellence programme flyerExcellence programme poster Biosecurity Blitz regular poster sample - inductions Biosecurity Blitz regular newsletter sample Excellence programme research findings: biosecurity understanding, perceptions, and behaviourExcellence programme research findings: article

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10 Apr 2025

Successful end to fruit fly response on Auckland’s North Shore

Controls on the movement of fruit and vegetables in the Auckland North Shore suburb of Birkdale have been lifted after no further evidence of the Oriental fruit fly was found in the area. The decision to end the operation follows seven weeks of intensive fruit fly trapping and inspections of hundreds of kilograms of fruit, with no further detections. Residents and businesses in the affected area are being thanked for their support of the movement controls, keeping an eye out for fruit flies, and safely disposing of fruit in provided bins. The support from the North Shore community has been vital to protect our industry and the wider horticultural sector. National routine surveillance will continue, with New Zealand’s system of nearly 8,000 fruit fly traps spread across the country, set for three exotic fruit fly species of concern: the Queensland fruit fly, Mediterranean fruit fly and Oriental fruit flies. KVH thanks industry personnel from APAC who collaborated with us on fruit fly response activities in Birkdale.

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10 Apr 2025

Listen to the latest news

We have a new Snapshot podcast online, where we chat with Ryan, Chief Quarantine Officer for the Ministry for Primary Industries, about the work his teams does across biosecurity. Ryan manages the Tauranga, Hamilton, and Northland regions – there are biosecurity teams in all three regions – and in the chat we focus on the way they manage cruise ships, transitional facilities, and various partnerships that they have with KVH and the kiwifruit industry. The Snapshot podcasts are free and available now on SoundCloud and Apple iTunes.

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