Walla Walla, Wash. -- Growth may have come to an end for the Washington wine industry, with the number of bonded premises in the state listed in the Wines & Vines Industry Base dropping to 591.That’s down two from the first quarter, with signs of more to follow as vintners retrench.While many wineries have weathered the economic challenges of the past two years, the dust is starting to settle as vintners decide to shut tasting rooms or close down altogether. Corporate heavyweight Diageo PLC is closing the tasting rooms for Canoe Ridge Vineyards in Walla Walla and Wapato’s Sagelands Vineyards later this month, while Seattle-based Precept Wine Brands is reducing production at its Alder Ridge facility to focus on production at its wineries in Prosser and Walla Walla.