KNUTSFORD, UNITED KINGDOM - OCTOBER 24: The first frost of winter clings to spiders web in the Cheshire countryside at dawn on 24 October, 2007, Knutsford, England. Farmers and and livestock owners have been waiting in vain for the first deep frosts of winter in the hope of killing off Blue Tongue disease. The disease which hit Britain in late summer attacks livestock and animals that survive the disease can suffer long-term damage, such as a reduction in meat and wool production. Blue tongue is a non-contagious virus spread by a species of midge and is most commonly seen in the late summer and autumn and killed off as cold weather arrives and kills the animal infecting midge.