Many vignerons would go pale at the thought of hungry sheep roaming among their vines, but in the state's South West, it is just another way of coping with a difficult year in the wine industry. Some wine producers are letting sheep in the vineyard in an attempt to sit out a national grape glut. "There are those vineyards that have actually closed in sheep on the vineyard, which defoliate the vines," says Silverstream Wines owner Tony Ruse.