Search Site

Newsroom

Print these articles
Biosecurity News
22 August 2019
Kiwifruit's Most Unwanted updated and out now
22 August 2019
KVH regularly talks about fruit fly being our number one threat closely followed by the Brown Marmorated Stink Bug (BMSB), but how are these rankings assigned? We’ve developed a risk matrix...
Kiwifruit's Most Unwanted updated and out now
22 August 2019

KVH regularly talks about fruit fly being our number one threat closely followed by the Brown Marmorated Stink Bug (BMSB), but how are these rankings assigned?

We’ve developed a risk matrix to provide a structured and objective method of prioritising threat organisms into a shorter list for the purpose of readiness and response planning.

The organisms that are considered the highest risk make up Kiwifruit's Most Unwanted. This is based on the likelihood of them entering and establishing in New Zealand, and the potential production and market access impacts should this occur.

Significant efforts are put into readiness planning for these threats. This essentially involves working with others in our industry, Biosecurity New Zealand and affected sectors to agree how we would respond to an incursion of these organisms and running simulations with KiwiNet (our industry response team) to test these readiness plans.

The Most Unwanted list has just been updated and many of the pests and pathogens that feature will look familiar as you would have seen them in the headlines in recent times – BMSB was found in December at a property in Mount Maunganui and there have been three separate fruit fly responses in Auckland this year.

However, there have also been some changes to the list, namely the addition of the Spotted Lanternfly (SLF) which is becoming an increasing threat globally since its invasion into the USA in 2014. Kiwifruit is a host to this pest and there have been reports of damage to kiwifruit in both its native and invasive range with sooty mould growth being the most significant impact. SLF is a hitchhiker pest that would be most likely to arrive as egg masses on inanimate objects. Researchers in the USA say this pest may be just as devastating if not worse than BMSB.

You can order a copy of the Kiwifruit's Most Unwanted updated foldout flyer or brand new poster (we have them in A4 and A3) for your orchard, business, or staffroom by contacting KVH.

Biosecurity News
22 August 2019
Psa symptoms herald spring season change
22 August 2019
KVH has to date received two reports of Psa exudate symptoms, one for a previously undetected orchard and the other for a young Gold3 block. Early varieties are now beginning to break bud and...
Psa symptoms herald spring season change
22 August 2019

KVH has to date received two reports of Psa exudate symptoms, one for a previously undetected orchard and the other for a young Gold3 block. Early varieties are now beginning to break bud and growers are recommended to begin monitoring areas more prone to Psa, to build an understanding of where risk may lie this season. Focus on more vulnerable young plants and take care to protect these with directed spray programmes and good frost protection.

If ground conditions have limited the opportunity to apply sprays through winter, now is the time to apply copper at winter rates, ensuring a one-week window is maintained between bud enhancing spays and copper. Research has shown Psa can be present under bud scales as well as on the surface of buds so protection through the bud-break period is key to providing a strong start to the spring programme.

Where pruning gangs are still at work an emphasis on tool hygiene is also recommended.

If Psa-like symptoms are seen for the first time on your orchard report these to KVH on 0800 665 825. Growers can also contact their packhouse technical representative for advice and sample collection if required.

Hill Laboratories carry out routine Psa testing weekly on Wednesdays.

Biosecurity News
22 August 2019
Distant experts fight bug threat
22 August 2019
Two scientists on opposite sides of the world are at the forefront of the battle to keep some of the most insidious, damaging pests at bay from valuable food crops. This summer in northern Italy they...
Distant experts fight bug threat
22 August 2019

Two scientists on opposite sides of the world are at the forefront of the battle to keep some of the most insidious, damaging pests at bay from valuable food crops. This summer in northern Italy they are working closely in an effort to try to stymie the spread of the voracious Brown Marmorated Stink Bug (BMSB) there and keep it out of New Zealand entirely.

Professors Claudio Ioriatti of Foundazione Edmund Mach and Max Suckling of New Zealand’s Plant and Food Research and University of Auckland spoke to
Farmers Weekly last week about their battle with bugs across the hemispheres:

Standing in an orchard in the warm north Italian sunshine Professor Max Suckling casts a rueful eye towards the mountains surrounding the Trento district.

“I am sure those hills are crawling with them,” he observes, referring to the BMSB flitting and crawling across the ripening apples next to him.

The stink bug has already almost wiped out Italy’s €300 million pear industry and now threatens Trento’s 10,000 hectares of apple crops. Its impact in NZ would devastate the horticultural sector and significantly increase the amount of sprays used on remaining fruit, losing NZ fruit’s premium as a low-residue fruit supplier.


Read more here.

Biosecurity News
22 August 2019
Virginian apple grower experience of BMSB
22 August 2019
Last week KVH travelled to the Hawkes Bay to join a workshop hosted by New Zealand Apples & Pears which focused on mid to long-term management of Brown Marmorated Stink Bug (BMSB). Bill...
Virginian apple grower experience of BMSB
22 August 2019

Last week KVH travelled to the Hawkes Bay to join a workshop hosted by New Zealand Apples & Pears which focused on mid to long-term management of Brown Marmorated Stink Bug (BMSB).

Bill Mackintosh, who was also a speaker at the Apples & Pears annual conference this year, set the scene sharing first-hand experience of the damage, control and secondary pest problems associated with BMSB in his home region of West Virginia.

Bill grows apples, pears and peaches and commented that trapping and control methods are continually improving, with growers benefiting from United States Department of Agriculture research into control methods.

Most growers now reduce damage through application of border sprays four to five times a year, although in years where BMSB levels are high, growers may still repeatedly spray whole orchards. Residue profiles for fruit sprayed to protect against BMSB are a real challenge as treated fruit loses access to premium markets (which demand residue free fruit). The rise in pests previously controlled through well-developed integrated fruit production programmes has also impacted grower returns and viability. Populations of western flower thrips, woolly aphids and St Jose scale, have all bounced back since pyrethroids have been applied.

Bill emphasised the importance of early detection and prompted all growers and field staff to be on constant watch for all life stages of BMSB, and to pay close attention to any unusual crop damage. He recalls poor storage quality was reported for local apple crops in the years leading up to the 2010 BMSB population explosion, and in hindsight believes that internal damage, diagnosed then as calcium deficiency, may well have been early sightings of BMSB damage. Small droplets on the skin of developing fruit, with no apparent cause were also a clue sometimes picked up by the keen eye.

Biosecurity News
22 August 2019
Phytophthora planning underway
22 August 2019
Last week a one-day symposium on Phytophthora was held in Auckland as part of the New Zealand Plant Protection Society (NZPPS) Conference. Phytophthora has had a lot of attention recently as it...
Phytophthora planning underway
22 August 2019

Last week a one-day symposium on Phytophthora was held in Auckland as part of the New Zealand Plant Protection Society (NZPPS) Conference.

Phytophthora has had a lot of attention recently as it continues to spread globally and cause devastation to a range of cultivated and natural environments. Notable species in New Zealand include Phytophthora agathidicida which causes Kauri Dieback, P. pluvialis which is causing Red Needle Cast in pine, and P. cinnamomi which is causing problems for Avocados.

The symposium drew on a broad range of speakers, both locally and internationally, bringing a unique global perspective. Matt Dyck from KVH and Dr. Sonia Whiteman from Zespri presented on the risk of Invasive Phytophthora to kiwifruit.  They covered the recent literature review commissioned to better understand that risk, as well as the importance of learning more about which species could potentially impact us here in New Zealand. They also noted the preparation underway through our readiness and response plan which is currently being developed in conjunction with Biosecurity New Zealand.

Company Notices
22 August 2019
Help spread the biosecurity word online
22 August 2019
You, your family and friends can follow KVH on Facebook, Twitter and YouTube social media pages. We use the pages to engage with more people across the wider kiwifruit industry and share...
Help spread the biosecurity word online
22 August 2019

You, your family and friends can follow KVH on Facebook, Twitter and YouTube social media pages.

We use the pages to engage with more people across the wider kiwifruit industry and share biosecurity messages with the public. It’s important to us that everyone is involved in biosecurity and sees that they have a part to play in helping keep out unwanted pests and threats.

Being online also enables us to spread messages more efficiently and quickly when we need to let people know about new incursions, any effects they may or may not have on the kiwifruit industry), and what actions people may need to take. You can follow us on Twitter ‘@KVHNZ’ or find us on Facebook and YouTube at ‘Kiwifruit Vine Health – KVH’.

Protocols & Movement Controls
22 August 2019
South Island Controlled Area Notices
22 August 2019
KVH is aware of an increasing, but still currently small number, of kiwifruit-related enterprises establishing in isolated areas of the South Island.  These locations are all outside of the...
South Island Controlled Area Notices
22 August 2019

KVH is aware of an increasing, but still currently small number, of kiwifruit-related enterprises establishing in isolated areas of the South Island.  These locations are all outside of the South Island Exclusion region and include a small male kiwifruit orchard at Karamea; a nursery producing kiwifruit plants at Te Anau; a Christchurch nursery growing kiwifruit plants; and a University housing kiwifruit seedlings for research purposes.

KVH has worked with the owners or managers of each of these sites, and is using provisions of the Biosecurity Act and National Psa-V Pest Management Plan (NPMP) that allow KVH to declare Controlled Areas to limit any potential spread of Psa. 

The owners and managers have all been supportive of KVH actions to further protect these areas and enterprises.  A regional classification map and information about the controlled areas is available on the KVH website.

A reminder:
- The South Island remains Psa not-detected
- KVH authorisation is required for movement of any risk item such as orchard machinery
- Any movement of kiwifruit plant material (such as plants, budwood, seeds for propagation and pollen) from the North Island to the South Island is prohibited
- Any movement of kiwifruit plant material for research is very strictly regulated.

KVH thanks everyone for their cooperation to ensure that the South Island remains Psa not-detected.

Kiwifruit Vine Health

25 Miro St
Mount Maunganui
Tauranga 3116

Tel:  0800 665 825
Fax: 07 574 7591

Email: info@kvh.org.nz