Join Oregon State University Extension and the Oregon Wine Research Institute (OWRI) for a live webinar series starting Oct. 20, 2020 focusing on Grape Red Blotch Disease. These seminars will focus on research findings from Oregon-based studies conducted by researchers at OWRI and partners at the USDA-ARS. Seminars will cover virus epidemiology, vector identification and biology, grapevine performance, wine production, fruit and wine composition, and wine sensory results. Each seminar will allow a live question/answer session.

ODA pesticide credits are approved for the first five seminars in the series.

Seminars are FREE but registration is required in advance.


October 20, 2020 | 12:00-1:00 PM PST | 1 ODA pesticide credit

Where are we now? A deeper understanding of Grape Red Blotch Virus effects on grapevine physiologyDr. Alexander Levin, Assistant Professor of Viticulture, Oregon State University. 

Register in advance for this webinar


October 27, 2020 | 12:00-1:00 PM PST | 1 ODA pesticide credit

Efficacy of vineyard management practices for mitigating the effects of Grape Red Blotch DiseaseCody Copp, Graduate Research Assistant and MS candidate, Oregon State University. 

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November 3, 2020 | 12:00-1:00 PM PST | 1 ODA pesticide credit

Review of current knowledge of vectors and epidemiology of Grape Red Blotch DiseaseDr. Vaughn Walton, Professor and Horticultural Entomologist, Oregon State University. 

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November 17, 2020 | 12:00-1:00 PM PST | 1 ODA pesticide credit

Vine response to Grape Red Blotch Virus and management tactics in Oregon’s Willamette ValleyDr. Patty Skinkis, Professor and Viticulture Extension Specialist, Oregon State University. 

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November 24, 2020 | 12:00-2:00 PM PST | 2 ODA pesticide credits (1 core credit, 1 other credit)

More into the details of Grape Red Blotch Disease diagnosis: When, where, how, and why?Dr. Achala KC, Assistant Professor of Plant Pathology, Oregon State University

Testing insects from vineyards with high incidence of Grape Red Blotch Virus for the ability to transmit the virusDr. Jana Lee, Research Entomologist and Dr. Robert Martin, Research Plant Pathologist, USDA-ARS. 

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December 1, 2020 | 12:00-1:00 PM PST

Sensory impacts due to Grapevine Red Blotch Virus on Willamette Valley Pinot noirSamuel Hoffman, Graduate Research Assistant and MS candidate, Oregon State University. 

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December 8, 2020 | 12:00-1:00 PM PST

Grape Red Blotch Disease: Grape and wine compositionDr. Michael Qian, Professor of Food Chemistry, Oregon State University, Dr. Alexander Levin, Assistant Professor of Viticulture, Oregon State University, Dr. Patty Skinkis, Professor and Viticulture Extension Specialist, Oregon State University. 

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December 15, 2020 | 12:00-1:00 PM PST

Grape Red Blotch Disease: What we learned and where do we go next?Review and open discussion session with the entire OWRI Red Blotch Study Team of panelists, including Drs. Achala KC, Jana Lee, Alexander Levin, Bob Martin, James Osborne, Michael Qian, Patty Skinkis, Elizabeth Tomasino, and Vaughn Walton. 

Register in advance for this webinar