Next Generation Viticulture: Capture more light to harvest more grapes
Transforming canopy management systems to maximise sunlight could increase vineyard profitability without compromising wine quality, says researchers.
Imports from the cultivar supplier Washington University Clean Plant Center Northwest (CPCNW) have been halted and thousands of trees either impounded or already destroyed, after the Ministry for Primary Industries said it could not be sure of their disease status because of non-compliance issues at the US facility.
Growers have challenged MPI in the High Court, which has directed MPI to reconsider and work with growers to develop more appropriate ways of managing its concerns.
Jones, the general manager of the Central Otago cherry orchard company 45 South, says the affair raised several issues.
“From an industry point of view, the most important thing to protect is our biosecurity status, so we took the view that if there is any risk obviously the plants should be destroyed,” he told Rural News.
“The bulk of the growers who had five trees or ten trees said ‘I don’t care, let’s just get rid of them. If there’s a risk let’s get them off the property’.”
However, the court case was taken by growers, such as nurseries, with more money at stake.
“So the industry groups – Summerfruit, Pipfruit – have sat to one side while that court case has been going on, just to see exactly where that’s going to shake out,” Jones says.
“Growers are saying to us ‘biosecurity is paramount, so we need to go into bat for them’.”
He says Summerfruit NZ would be “more than happy” for the impounded trees to be released if there was proved to be no risk.
Many of the affected trees have already been destroyed. Leaning Rock Orchard, Alexandra, had trial numbers of new varieties amounting to about a couple of dozen trees in total.
Orchard manager Peter Bennie, indicating the gaps in the rows where trees were lifted and burned, emphasised that he was not criticising the way MPI handled the matter.
Jones says the bigger issue for the future is how to maintain a steady pathway of new genetic material coming into NZ.
“This is closing the border at the moment for new stuff to come in. We’ve got an outdated import health standard that needs to be rebuilt so we can use modern technology.”
CPCNW is now saying it’s not interested in seeking re-accreditation for the NZ market. “That’s a concern, not just for summerfruit, but for pipfruit and any plant material that might be coming from that facility into NZ.”
Jones told Rural News that the problem for NZ is that it’s so small a market that suppliers find it uneconomic to deal with our accreditation requirements.
“We fight that... with chemical companies, for example – fungicides, insecticides, that sort of thing. We’re such a small market that the cost of registration is prohibitive.”
