A Pukekohe-based onion exporter says this season is shaping up to be the worst he has seen in 30 years.
NZ Onion Company managing director Mike Blake said Europe is halving the number of onions it would usually take from New Zealand.
"The cost of freight has increased by as much as 100 per cent to different parts of the world," Blake said.
He said the only way to offset that was to increase the price or to return less to the growers.