The Environment Court in Christchurch has reserved its decison on an appeal by winegrowers against a ruling by Hurunui District Council to limit the noise level of wind machines used for frost protection.
Owners of vineyards in the Waipara Valley say a limit of 55 decibels would prevent the machines from operating at a level that would provide full protection.
New Zealand Winegrowers policy manager John Barker says the outcome of the appeal will be significant for all growers, not just those in North Canterbury.
Dr Barker says the decision is expected early next year.
"We are trying to take into account the concerns of people who live nearby," he says.
