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A long-term wine grape rootstock trial has been conducted at the Oregon State University (OSU) Woodhall Vineyard, located in the south Willamette Valley. The trial has been evaluated since 2019 by…
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A simulation of grape powdery mildew development from a single infection point (x)
in an untreated vineyard with 2 x 2 meter spacing between vines. This simulator lets us observe epidemic…
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This webinar is presented by Dr. Patty Skinkis, Professor and Viticulture Extension Specialist at Oregon State University, who summarizes her research exploring vineyard soil moisture and rootstock…
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This webinar is presented by Dr. James Osborne, Professor and Enology Extension Specialist in the Department of Food Science and Technology at Oregon State University. Dr. Osborne summarizes his…
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This is the third webinar presented during the June 1 Grape Day webinar session. Alexander Wong, a graduate research assistant in the Department of Botany and Plant Pathology at OSU and the USDA-ARS…
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This webinar is presented by Dr. Nathalie Aoun, a postdoctoral researcher in the Stergiopoulos lab at UC Davis, who has conducted research studying molecular mechanisms for powdery mildew resistance…
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This webinar is presented by Sarah Lowder, a graduate research assistant in the Department of Botany and Plant Pathology and the USDA-ARS Foliar Pathology lab working with Dr. Walt Mahaffee. Sarah…
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This is the third seminar presented during the May 18 Grape Day
webinar session. Britt Eubanks, a graduate research assistant in the lab of Dr.
Laurent Deluc at Oregon State University, summarizes…
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Christian Mandelli, Graduate Research Assistant in the
Department of Horticulture at Oregon State University, presents his research project focused on the reduction of the negative effects of Red…
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This seminar summarizes research developing transgene-free gene editing tools in grapevine. Dr. Satyanarayana Gouthu is a research associate in Dr. Laurent Deluc's Lab at Oregon State…
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This seminar summarizes wine sensory impacts of Grapevine
Red Blotch Virus in Pinot noir vineyards that were found positive for Grapevine
Red Blotch Virus. Sensory studies
were conducted Winter…
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This seminar is presented by Quynh Phan, a PhD candidate in the lab of Dr. Elizabeth Tomasino (Wine Sensory) in the Department of Food Science and Technology at Oregon State University. Quynh is…
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Grape Red
Blotch Disease: What we learned and
where do we go next?
This panel was an open discussion session with the
entire Oregon Wine Research Institute (OWRI) Red Blotch Study Team…
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Dr. Michael Qian summarizes fruit and wine flavor compound composition of Pinot noir from three field trials conducted in Oregon in Red Blotch Disease infected vineyards. The projects were designed…
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This webinar summarizes wine sensory perception results from two field experiments conducted in Pinot noir vineyards that were found positive for Grape Red Blotch Virus. Sensory studies were…
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This is the second seminar presented during the November 24 webinar session on Grapevine Red Blotch Disease. Dr. Jana Lee, Research Entomologist, USDA-ARS Horticulture Crop Research Lab, presents…
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Dr. Achala KC, Assistant Professor of Plant Pathology at OSU's Southern Oregon Research Center, presents work on virus testing methodology and virus titer for Grapevine Red Blotch Disease. This…
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This webinar summarizes several Grape Red Blotch Virus research projects conducted with Pinot noir in Oregon's Willamette Valley. Dr. Patty Skinkis is Professor and Viticulture Extension…
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This seminar is presented by Cody Copp, a graduate research assistant and MS degree candidate in the Department of Horticulture at Oregon State University. Cody is studying the impacts of vineyard…
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This webinar is presented by Dr. Alexander (Alec) Levin, who has conducted research on Grape Red Blotch Disease, vine water relations, and applied vineyard irrigation research since 2016.
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This seminar is presented by OSU economist Dr. Clark Seavert, who took
the initial steps to evaluate the economic potential of
mechanizing vineyard tasks for the Northwest wine
industry.
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This seminar is presented by Dr. James Osborne, who has conducted research investigating the use of select non-Saccharomyces yeast
to reduce growth of the spoilage yeast Hanseniaspora
uvarum during…
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The seminar is presented by Dr. Akif Eskalen, cooperative extension specialist in plant pathology at UC Davis. Dr. Eskalen summarizes his research on the biology, etiology, and epidemiology of…
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A compilation of research
and outreach for the Oregon Wine Research Institute.
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Dr. Inga Zasada, Research Plant Pathologist, USDA-ARS plant pathologist, discusses parasitic nematodes in this seminar. Nematodes are economically-important root parasites of grape vines which cause…
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Berry sensory assessment (BSA) is a tool that can be used to assist in the evaluation of grape quality, however little published information exists on BSA characteristics of established grape…
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Grape powdery mildew, caused by Erysiphe necator, is a polycyclic disease that causes economic losses related to the costs of management and damage to grapes. The epidemic begins with the release of…
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Each growing season, a vineyard manager makes a set of interconnected decisions (e.g., watering schedule, pruning, pesticide application, fertilization) that guide their crops throughout the year.…
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Powdery mildew remains a concern for grape growers and can be difficult to manage. Populations of Erysiphe necator cleistothecia can burst open and release ascospores over an extended period of time…
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Fungicide resistance became a priority this past summer with several documented powdery mildew management failures in vineyards. Several new fungicides have been registered for grapes and some of…
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An annual compendium of OWRI research, outreach and Extension activities.
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The Statewide Crop Load Project was established in 2012 as a large grower-collaborative study to determine the long-term impacts of yield management on fruit composition, wine quality, and vine…
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