UC Davis Grape Day & Trade Show The Department of Viticulture and Enology at UC Davis will host a grape day and trade show at the Oakville Experimental Vineyard on June 8, 2022, from 8:30 am - 2:30 pm. Jun 8, 2022 @ 8:30am - 2:30pm Oakville Experimental Vineyard, 1380 Oakville Grade Rd., Oakville Event Details