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  • Viticulture & Enology Technical Newsletter : Winter 2021

    Creator:
    Oregon Wine Research Institute
    Abstract:
    This edition contains research updates and a comprehensive list of publications summarizing research conducted by faculty of the Oregon Wine Research Institute at Oregon State University. Dr. Elizabeth Tomasino, OSU associate professor, and Quynh Phan, OSU doctoral candidate, open the newsletter with an article on Pinot noir wine lipid composition....
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    written to inform you of this insect and provide details on where to report findings. We also provide

  • Viticulture & Enology Technical Newsletter : Spring 202

    Creator:
    Oregon Wine Research Institute
    Abstract:
    This edition contains research updates and a comprehensive list of publications summarizing research conducted by faculty of the Oregon Wine Research Institute at Oregon State University. Drs. Alexander Levin and Achala KC, both assistant professors at OSU-Southern Oregon Research and Extension Center (SOREC), along with Cody Copp, graduate research assistant,...
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    , supplemental fertilizer had no effect on vine nutrient status, and vines in all plots were in healthy

  • Viticulture & Enology Technical Newsletter : Summer 2013

    Creator:
    Oregon Wine Research Institute
    Abstract:
    Our current issue of the OWRI Technical Newsletter is packed with Extension information, research results, and program updates. Paul Schreiner, Research Plant Pathologist, USDA-ARS, opens the newsletter with an article on his latest research assessing vine nutrients requirements in Pinot noir. Laurent Deluc, Associate Professor, OSU, reports on his research...
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    )  Véraison  Leaf N (%)  Prune wt  (g/vine)  Yield (ton/ acre)  YEAR 1 7.50  1.82 a  375 a  No data

  • Viticulture & Enology Technical Newsletter : Fall 2018

    Creator:
    Oregon Wine Research Institute
    Abstract:
    This edition contains research updates and a comprehensive list of publications summarizing research conducted by faculty of the Oregon Wine Research Institute at Oregon State University. Dr. Elizabeth Tomasino, OSU Associate Professor, opens the newsletter with an article on the influence of two compounds on Pinot noir aroma. Drs. Laurent...
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    fingerprint regardless of the reference and test clones. Though, five markers (VRG4, 5, 9, 10, and 16) were

  • Viticulture & Enology Technical Newsletter : Fall 2019

    Creator:
    Oregon Wine Research Institute
    Abstract:
    This edition contains research updates and a comprehensive list of publications summarizing research conducted by faculty of the Oregon Wine Research Institute at Oregon State University. Dr. Bob Martin, Research Plant Pathologist (Virology), USDA, opens the newsletter with a research update on grapevine red blotch disease that provides growers with...
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    leaves with no virus, 2. GRBV infected leaves, 3. water control, no leaf tissue, 4 and 5. one infected

  • Enrichment Isolation of Brettanomyces Yeasts to Probe the Relationship Between Vineyard and Winery Populations

    Creator:
    Pigao, Kevin E.
    Abstract:
    The budding yeast Brettanomyces bruxellensis has the potential to spoil fermented beverages and cause financial losses, but also contribute positively to certain products such as Lambic beer. It is most notorious for causing “Brett” spoilage of wine, which is characterized by undesirable aromas such as “bandaid” and “barnyard”, therefore most...
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    Masters Thesis
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    have been no comprehensive comparisons of populations from vineyards and wineries, to establish their

  • Viticulture & Enology Technical Newsletter : Spring 2016

    Creator:
    Oregon Wine Research Institute
    Abstract:
    Our latest edition of the OWRI Technical Newsletter contains helpful Extension information, updates and research discoveries. Dr. Jay Pscheidt, Professor and Extension Plant Pathologist, OSU, opens the newsletter with an article about the potential effects of climate change on powdery mildew; a timely topic for the 2016 growing season. Dr....
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     sunrise and stayed  there un l near sunset. This was uncharacteris c for most of the state and  was no

  • Viticulture & Enology Technical Newsletter : Fall 2017

    Creator:
    Oregon Wine Research Institute
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    . We found no differences in soil moisture or plant water status during the 9-years (2007-2015

  • Viticulture & Enology Technical Newsletter : November 2012

    Creator:
    Oregon Wine Research Institute
    Abstract:
    This issue is packed with new information from various research trials conducted here in Oregon, whether it is from vineyard plots, the wine lab, or the growth chamber, results are likely to have impact on vineyard and winery production here in Oregon. James Osborne, Enology Extension Specialist, opens this month’s...
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    making SO 2 additions to the must prior to fermentation, you should generally add no more than 40 mg

  • OSU Wine and Grape Research and Extension Newsletter : July 2007

    Creator:
    Oregon State University. Extension Service
    Abstract:
    The growing season is in full swing. As growers are busy doing canopy management in the vineyards and wine makers are preparing for the upcoming vintage, OSU faculty are working hard on their field research trials and extension programs to advance viticulture and enology research and education. We’ve been busy...
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    Report Regional Viticulture: Umpqua Monitoring Grapevine Nutrition Getting the Feel for Wine Texture

  • Viticulture & Enology Technical Newsletter : Spring 2019

    Creator:
    Oregon Wine Research Institute
    Abstract:
    This edition contains research updates and a comprehensive list of publications summarizing research conducted by faculty of the Oregon Wine Research Institute at Oregon State University. Dr. Patty Skinkis, OSU Viticulture Extension Specialist and Professor, opens the newsletter with an article on canopy yield management. Dr. James Osborne, OSU Enology...
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    ). However, other studies show minor to no impact of cluster thinning on basic fruit ripeness or

  • Viticulture & Enology Technical Newsletter : Summer 2018

    Creator:
    Oregon Wine Research Institute
    Abstract:
    Our latest edition of the OWRI Technical Newsletter contains research updates and a comprehensive list of publications summarizing research conducted by faculty of the Oregon Wine Research Institute at Oregon State University. Dr. R. Paul Schreiner, USDA-ARS Research Plant Physiologist, opens the newsletter with a research update on Pinot noir...
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    yield were both reduced in the second study only after vines received no P for 3 years and this was

  • Viticulture & Enology Technical Newsletter : Fall 2016

    Creator:
    Oregon Wine Research Institute
    Abstract:
    Our latest edition of the OWRI Technical Newsletter contains research updates, the latest Extension resources, and a comprehensive list of publications outlining research conducted by members of the Oregon Wine Research Institute at Oregon State University. Dr. Patty Skinkis, Viticulture Extension Specialist & Associate Professor, OSU opens the newsletter with...
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    , most of which are available online. Cheers, The OWRI Team Statewide Crop Load Project Report

  • Viticulture & Enology Technical Newsletter : October 2011

    Creator:
    Oregon Wine Research Institute
    Abstract:
    This newsletter comes as many of you anxiously await this year’s harvest. We have taken this opportunity to focus on berry development in the viticulture section. Laurent Deluc, Grape Researcher, writes about his research on berry ripening synchronization, and Viticulture Extension Specialist, Patty Skinkis, provides information on berry development and...
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    grape and wine quality. A recent report demonstrated that variability in berry maturity within a

  • OSU Wine and Grape Research and Extension Newsletter : May 2010

    Creator:
    Oregon State University. Extension Service
    Abstract:
    As the season progresses and all anticipate bloom, we hope you take the opportunity to read this issue. It is full of useful information on some pests of concern—both old and new—in the vineyard and winery: powdery mildew, grape rust mites, Spotted Wing Drosophila and Brettanomyces. We include other useful...
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    “bronzing.” ˜ere is no critical threshold identified for mite presence per leaf in summer scouting

  • Viticulture & Enology Technical Newsletter : Spring 2013

    Creator:
    Oregon Wine Research Institute
    Abstract:
    Welcome to the spring edition of the OWRI Technical Newsletter. This edition showcases several articles and resources that will help you to prepare for the 2013 season. Dr. James Osborne, OSU Enology Extension Specialist, opens this edition with a timely article about Brettanomyces and winemaking. You will also find an...
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    ft. The vines were dry-farmed and no fertilizer was applied except foliar boron for the duration of

  • OSU Wine and Grape Research and Extension Newsletter : October 2009

    Creator:
    Oregon State University. Extension Service
    Abstract:
    As the 2009 growing season comes to a close, we prepared this newsletter to provide information on several viticulture and enology issues important to the Oregon winegrape industry. We begin with the most immediate topic of this season – wine production with Dr. James Osborne and importance of wine superstars...
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    Osborne, Extension Enologist, OSU No offense to winemakers, but the most important workers in the winery

  • OSU Wine and Grape Research and Extension Newsletter : October 2008

    Creator:
    Oregon State University. Extension Service
    Abstract:
    As the 2008 growing season comes to a close, we prepared this newsletter to provide information on several research projects conducted by OSU faculty and students, address frost concerns from this fall, and showcase the OSU Viticulture & Enology undergraduate program alumni. Dr. Marcus Buchanan has a synopsis of an...
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    tissues are killed by temperatures at or below 28°F. Once these cells are damaged or killed, they no

  • OSU Wine and Grape Research and Extension Newsletter : April 2009

    Creator:
    Oregon State University. Extension Service
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    generally is spread by aphids, yet there has been no aphid transfer to vines observed. Recent observations

  • Viticulture & Enology Technical Newsletter : March 2011

    Creator:
    Oregon Wine Research Institute
    Abstract:
    Welcome to the March 2011 Viticulture & Enology Newsletter! We have a number of great articles from members of our team to keep you informed. Marcus Buchanan provides an update on the mealybug trapping efforts that have been in place in southern Oregon’s winegrape regions since 2009. Jay Pscheidt writes...
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    replaced on approximately a 30 day interval with traps removed between 9 and 27 October. Other Species

  • Viticulture & Enology Technical Newsletter : July 2011

    Creator:
    Oregon Wine Research Institute
    Abstract:
    This newsletter comes at the advent of bloom and fruit set in this 2011 season. To provide information on timely topics, Patty Skinkis provides an article on early season leaf removal and how it may help reduce disease infection. Inga Zasada provides information on plant parasitic nematodes to help you...
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    benefit of leaf pulling for disease management, it is no surprise that the majority of vineyard managers

  • OSU Wine and Grape Research and Extension Newsletter : October 2007

    Creator:
    Oregon State University. Extension Service
    Abstract:
    The growing season has come to an end and everyone is feverishly trying to harvest fruit before rain and/or frost, depending on the specific vineyard location throughout the state of Oregon. Here at OSU, we’ve been busy over the past few months providing programming to growers and winemakers. During August,...
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    although due to the complexity of factors influencing H2S production, no strain can be said to be problem

  • OSU Wine and Grape Research and Extension Newsletter : August 2008

    Creator:
    Oregon State University. Extension Service
    Abstract:
    In this issue, our group of winegrape researchers throughout the state has comprised a summary of the statewide incidence and damage caused by Short Shoot Syndrome and mites over the past few years. Be sure to check this out as it provides some interesting information! Also, a vineyard update has...
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    25oBrix must. These are not hard and fast rules as many people may have no problems fermenting juice

  • OSU Wine and Grape Research and Extension Newsletter : August 2010

    Creator:
    Oregon State University. Extension Service
    Abstract:
    In this August issue, we focus on the grape berry. Articles within cover topics of cluster thinning, berry ripening, harvest., and various pests that can damage berries. Also, we provide information about how to conduct vine nutrient sampling at véraison to be sure to keep up with your nutrient program....
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    there are no nutritive limitations, such as in high vigor vines, crop thinning any time post-fruit set

  • OSU Wine and Grape Research and Extension Newsletter : April 2008

    Creator:
    Oregon State University. Extension Service
    Abstract:
    Beginning the 2008 Season… It appears that the spring weather we’ve been waiting for has finally arrived! Bud break is commencing, a week or so later than 2007 due to cold weather in most of Western Oregon. With the advent of the growing season, this edition of the OSU Wine...
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    -Funel, A. 2001. Biogenic amines in wines: role of lactic acid bacteria. FEMS Microbiol. Lett. 199: 9-13

  • OSU Wine and Grape Research and Extension Newsletter : January 2008

    Creator:
    Oregon State University. Extension Service
    Abstract:
    Winter provides many opportunities for viticulture and enology programming across Oregon, the Pacific Northwest and beyond. The vines, although dormant, need pruning and the winery operations continue. This month, we’ve decided to focus on important considerations in both the vineyard and winery. An article on pruning operations by Dr. Patty...
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    results showed no statistically significant difference in the total amount of anthocyanins in shaded and

  • OSU Wine and Grape Research and Extension Newsletter : July 2009

    Creator:
    Oregon State University. Extension Service
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    Other
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    part becomes sick or infected, there is no way to make it healthy. Deformed leaves, blotches on the

  • Viticulture & Enology Technical Newsletter : Fall 2014

    Creator:
    Oregon Wine Research Institute
    Abstract:
    This issue is packed with information. James Osborne, Enology Extension Specialist, OSU, opens the newsletter with an article about managing Brettanomyces and spoilage in the winery. Patty Skinkis, Viticulture  Extension Specialist, OSU, provides an article on the challenge of yield estimation in vineyards. Jay Pscheidt, Extension Plant Pathologist, OSU, provides a timely article on scouting for crown...
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    anomyces impacted? To determine  this, Pinot noir wine was sterile filtered with no addi on of  SO2. The

  • OSU Wine and Grape Research and Extension Newsletter : January 2009

    Creator:
    Oregon State University. Extension Service
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    Other
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    indicate no reduction in fruit set or changes in berry size and decreased infestation of botrytis and