"This increase - combined with significant cost increases in nearly all areas, including labour, seed, fertiliser, freight and compliance - is putting some growers perilously close to going out of business."
Unless consumers were prepared to pay for the increased costs of growing vegetables, "there will be an exodus from growing vegetables in New Zealand," O'Neill warned.
If growers shut up shop, vegetable prices would increase even further due to supply shortages, which risked a healthy, staple food being priced off the table for many New Zealand households, he said.
O'Neill called on the Government to safeguard food security by acting to reduce the spiralling cost of growing vegetables in New Zealand.
"Ultimately our health system - under immense pressure from Covid - would benefit from any cost reduction because it will enable all New Zealanders to continue eating nutritious vegetables, safeguarding their health and wellbeing."