Australian tomatoes are set to appear on New Zealand shelves but a local lobby group is questioning how consumers will be able to spot them.
Tomatoes New Zealand - which represents more than 150 commercial tomato growers - is urging food retailers and the hospitality sector to label or indicate where imported irradiated Australian tomatoes are sold or served.
Irradiation involves eradicating bacteria, mould, insects and other pests by using electrical beams or X-rays, or gamma rays which are generated from the radioactive source Cobalt 60, the organisation says.
New Zealand already accepts a number of irradiated tropical fruit from Australia not grown here, including mango, papaya and custard apple.
Tomatoes New Zealand called on those importing, selling or serving tomatoes to understand they must comply with the New Zealand Food Standards Code which stated that all food which had been irradiated, or food containing irradiated ingredients, must be labelled.