Shortages of fruits and vegetables in British supermarkets could last for months, according to a leading farmers’ organisation, amid a poor growing season in Spain in combination with sky-high energy prices. Over the past week, four major British supermarkets, Aldi, Asda, Morrisons, and Tesco, have all resorted to instituting rationing measures for certain products, with shortages of items such as cucumbers, peppers, and tomatoes hitting the shelves.