A salmonella scare in the US has left Florida's tomato industry in “complete collapse”, growers have warned.

Major supermarkets and restaurant chains across the US have pulled tomatoes from shelves and menus after the US Food and Drug Administration warned a salmonella outbreak had been linked to certain raw red plum, red Roma, and red round tomatoes.

Reggie Brown, executive vice-president of the Florida Tomato Growers' Association, told the Financial Times growers had $40m (£20.5m) worth of produce that would go to waste because they had had to stop picking crops.

Meanwhile, lemon importers have warned there could be a worldwide shortage of lemons because low temperatures in South Africa and Argentina had hit output.