2022 Oregon Wine Symposium | Grape Powdery Mildew; an Exploration From the Vineyard Through Cellar to Glass | Mildiu de la vid, un recorrido desde el viñedo hasta la bodega y la copa

Steve Matthiasson is the owner/farmer/winemaker of Matthiasson Wines, founded in 2003. He makes a number of different restrained and classically balanced wines from both common and uncommon varieties. He has been named Winemaker of the Year by both Food and Wine Magazine and the San Francisco Chronicle, and been nominated six times for the James Beard Award. Steve is a co-author of the California Code of Sustainable Winegrowing. He has provided consulting since 1995 to many vineyards including Araujo, Dalla Valle, Spottswoode, David Arthur, Chappellet, Two Wolves, Stag’s Leap Wine Cellars, Accendo, Antinori, and others. Along with his wife Jill, Steve farms his own family vineyards and tree fruit orchards in the Napa Valley.

Steve received his BA from Whittier College in 1991 and his MS from UC Davis in 1996. He is a licensed Pest Control Advisor, and has been a member of the review committee for the American Vineyard Foundation, a Director of the Napa County Farm Bureau, a Board Member of the Applied Ecologists Foundation, the past President of the Association of Applied Integrated Pest Management Ecologists, and past Chair of the Viticulture Committee for the California Enological Research Association. He is the Co-Chair of the 280 Project, a pathway for BIPOC people into the wine business.

Dr. Michelle Moyer is an Associate Professor and Extension Specialist for Viticulture in the Department of Horticulture at Washington State University, based at the Irrigated Agriculture Research and Extension Center in Prosser, WA. Her Extension responsibilities cover viticulture education across the state, and includes juice, processing, and wine grape production. Her research program focuses on integrated pest management, with an emphasis on the interface between plant physiology and pest management. She has active research and extension projects on fungicide resistance, nematode management, rootstock evaluations, trunk disease management, sprayer optimization and education, and powdery mildew management. She is currently the Project Director for a USDA-SCRI-CAP project titled “Fungicide Resistance Assessment, Mitigation, and Extension Network for Wine, Table and Raisin Grapes” (FRAME Network).

Michelle received her B.Sc. in Natural Sciences, double majoring in Genetics and Plant Pathology at the University of Wisconsin-Madison. She earned her PhD in Plant Pathology at Cornell University-New York State Agricultural Experiment Station where her studies focused on the epidemiology of grape powdery mildew.

Dr. James Osborne is an associate professor and enology extension specialist in the food science and technology department at Oregon State University and a member of the Oregon Wine Research Institute. He received his Ph.D. from Washington State University in 2005 researching interactions between wine yeast and bacteria, after which he spent time in his native New Zealand working at the University of Auckland. His current research focuses on the impact of wine microorganisms on wine quality. James provides outreach programs for the Oregon wine industry such as technical workshops and seminars to aid in the transfer of relevant research results to winery application. In addition, James teaches undergraduate and graduate classes in support of the enology and viticulture program at Oregon State University.

Vince Vidrine | Winemaker, Benton Lane Winery