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Wild kiwifruit

Wild kiwifruit

KVH works collaboratively with regional councils and landowners to manage wild kiwifruit populations and unmanaged orchards to reduce biosecurity risk to the New Zealand kiwifruit industry. 

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Wild kiwifruit

In October 2020, KVH and the Bay of Plenty Regional Council (BOPRC) signed an agreement to continue to work together to manage this pest plant over the next 10 years. Under the new agreement, KVH will manage the administration involved in the running of the programme while also contributing $150,000 annually towards control costs and surveillance costs. BOPRC will contribute $100,000 per annum and support KVH in gathering landowner contributions.

KVH has also partnered with Zespri and the Kiwifruit Breeding Centre. Through their significant contributions, the programme has been able to expand and control wild kiwifruit infestations previously left unchecked.

If you know the location of any unrecorded wild kiwifruit infestations, contact your local regional council or unitary authority with details so the infestation can be assessed and programmed for control.

Why control the wild population? The reason wild kiwifruit vines are a biosecurity risk to New Zealand’s kiwifruit industry is that they act as a vector for Psa and other kiwifruit pests and diseases. The wild population can act as a reservoir for biosecurity threats, undermining eradication, and control efforts on commercially productive vines.

They are also a threat to our environment. Wild kiwifruit vines are vigorous climbers, and if left uncontrolled, it can form dense heavy blankets of vines that strangle trees, causing them to die or collapse. Vines can also smother forestry plantations and New Zealand’s native bush.


How to prevent wild kiwifruit establishing

GROWERS

Remove unpicked fruit from vines and mulch as soon as possible. This prevents mass feeding by birds and allows the fruit to compost as quickly as possible.

POST-HARVEST OPERATORS

Cover bins of reject fruit to prevent birds feeding on ripening fruit.

FARMERS

Cover stockpiles of fruit with shade cloth, windbreak netting or something similar to prevent birds from getting to any fruit. Feed out only what will be eaten by stock at one time to prevent birds from eating leftovers.

MEMBERS OF THE PUBLIC

Be very careful with the disposal of kiwifruit, particularly while out in the bush.

KILL WILD KIWIFRUIT PLANTS

Cut vines at ground level. Apply Vigilant Gel® herbicide to the top and sides of the cut stump or any exposed roots. Ring-bark stumps or large roots with a machete or pruning saw to assist absorption of the herbicide gel. Carefully trace all vine stems to find where they may have taken root. Cut any rooted stems at ground level and apply Vigilant Gel®. Never apply Vigilant Gel to stumps within a kiwifruit orchard. For controlling kiwifruit stumps within an orchard, please refer here.

SEEN SOMETHING UNUSUAL?

KVH investigates reports of unusual symptoms to identify and manage any biosecurity risks.

Make A report

LATEST NEWS

18 Jul 2024

Are you a quizmaster like our young growers?

Annual Young Grower competitions have been taking place throughout the regions over the last few weeks and we’ve had biosecurity rounds included in many of them. Congratulations to everyone who took part – it’s great to see such knowledge and enthusiasm for the importance of biosecurity. Just yesterday at the Bay of Plenty Young Grower event we provided an interactive quiz to each of the competitors, who impressed us with their on-orchard biosecurity expertise. Congratulations to Jack Canham from Apata for winning the biosecurity section on the day. How do you compare to this year’s young growers? Think you’d outdo them? Test yourself on the Connections game here (where you will need to group words that have a common thread, into four groups of four) before seeing the set of quiz questions we asked competitors here. Answers for the quiz questions can be found here. Good luck!

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16 Jul 2024

Mature plant movements

Winter is the time when growers look to replace plants on their orchards or plant new blocks. This article is a reminder that if these plants are being moved between properties there are biosecurity requirements that must be met to reduce the likelihood of spreading pests and diseases, including Psa. These requirements also provide the best chance of a successful response if a new organism was detected in our industry. While most kiwifruit plant movements come from nurseries, growers may occasionally move mature plants between orchards. The movement of any plants are a risk pathway, and it is important for growers to understand what’s required under the Pathway Plan, as outlined below. What does this mean for you? If you are taking mature plants from your own orchard for use on that same orchard there are no requirements under the Pathway Plan. If you are moving orchard plants from your orchard to another orchard, or source orchard plants from someone else, you need to ensure that you are meeting the requirements of the Pathway Plan – by being Kiwifruit Plant Certification Scheme (KPCS) certified for example. If you are a Psa non-detected supplier, you will need to complete a Psa test. It isn’t onerous to become certified as an orchard plant supplier and there are no costs (unless diagnostic testing is required). The new Pathway Plan requirements are very similar to existing protocols. They do require planning in advance to ensure monitoring can occur while vines have leaves and are in active growth. More information about orchard plant movement information, including the KPCS manual and supporting documents, is available here.

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15 Jul 2024

Upcoming AGM and voting packs

A reminder that our Annual General Meeting (AGM) is coming up and growers will receive their AGM packs by email at the end of this month. This is a public meeting and anyone who is interested is welcome to attend. Special guest Dr Jacqueline Rowarth will be joining us to speak about precision breeding, followed by the NZKGI and then Zespri annual meetings. Where: Mercury Baypark, Truman Lane, Mount MaunganuiWhen: Wednesday 21 August

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