It could be a very sour spring in wine country. "A lot of farmers are at the end of their rope," says Binny Boparai-Gill, who helps run Farming Karma Fruit Co in Kelowna B.C. The trouble stems from earlier this winter, which started exceptionally warm. Then in January, temperatures suddenly plunged. A shock many grape vines and fruit trees just couldn’t take. At West Kelowna's Kalala Organic Estate Winery, owner Karnail Singh Sidhu estimates 95 per cent of this year's grape crop has been destroyed.