Sustainable Winegrowing

John A. Roncoroni is the UC Cooperative Extension Weed Science Farm Advisor and UCIPM affiliate advisor in Napa County. In this podcast, John discusses his specialty; weed management in California's Coastal and Foothill premium winegrape growing regions. He discussed why weeds should play a more important role in pest control programs, knowing which weeds you have on your property, fire mitigation, and the toughest weeds to control today.

John received both a BS in Environmental Policy Analysis and Planning, with an emphasis in Agriculture and an MS in Horticulture from UC Davis. He was a Staff Research Associate in the UC Davis Department of Plant sciences working in all aspects of weed management for 25 years.

References:

• John Roncoroni
• MAINTAINING LONG-TERM MANAGEMENT: Herbicide-resistant weeds challenge some signature cropping systems
• Napa County UCCE
• Science and Controversy of Glyphosate | Dr. Scott Steinmaus (podcast)
• SIP Certified
• The Long View on Sustainable Winegrowing | Cliff Ohmart (podcast)
• University of California Integrated Pest Management Integrated Weed Management
• Vineyard Floor Management: Steel in the Field (video)
• Weed Management: Biology, Technology & Practice (tailgate)

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Subscribe on Google Play, iHeartRADIO, iTunes, Spotify, Stitcher, TuneIn, or wherever you listen so you never miss an episode on the latest science and research with the Sustainable Winegrowing Podcast. Since 1994, Vineyard Team has been your resource for workshops and field demonstrations, research, and events dedicated to the stewardship of our natural resources.

Learn more at www.vineyardteam.org.

In this special holiday edition we bring you a fascinating interview with Dr. Stephen Lloyd-Moffett, professor of Religious Studies at California Polytechnic State University.

Stephen looks at the way in which passion for wine acts as a surrogate for religion. In this interview he discusses how wine is a vehicle for communication, creating a transcendent wine experience through your environment, why rituals communicate value, and using this beverage to create bonds. And if you love this topic, you can read more in the newly released The Spirit of Wine: Finding Religion in the Fruit of the Vine.

Listen in to learn how religions studies can help us build our own vibrant communities and understand the world of wine.

References:

• Hit the Bottle (podcast)
• Neuroscience and Marketing: How People Make Decisions (podcast)
• SIP Certified
• Stephen Lloyd-Moffett
• Tips for Hospitality and Marketing from SIP Certified
• The Spirit of Wine
• The Spirit of Wine | Facebook
• The Spirit of Wine | Instagram

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Subscribe on Google Play, iHeartRADIO, iTunes, Spotify, Stitcher, TuneIn, or wherever you listen so you never miss an episode on the latest science and research with the Sustainable Winegrowing Podcast. Since 1994, Vineyard Team has been your resource for workshops and field demonstrations, research, and events dedicated to the stewardship of our natural resources.

Learn more at www.vineyardteam.org.

California has seen another challenging and sometimes devastating year of fires. Smoke from these events can cause unwanted flavors in wine. In this interview, Eric Herve, Research Scientist at ETS Laboratories and Matt Brain, Leader of the Sustainability Team at Crimson Wine Group and Associate Winemaker at Chamisal Vineyards, discuss how winemakers can screen grapes for the risk of smoke impact and work to mitigate its effects. Eric covers how impactful these compounds are at very low - parts per billion levels, the markers they are researching to test smoke exposure, blending considerations and much more.

References:

• Eric Hervé, Research Scientist, ETS Laboratories
• Matt Brain, Associate Winemaker at Chamisal Vineyards
• Smoke Impact in Grapes and Wine | ETS Laboratories
• Smoke Taint: How Much Smoke is Too Much? | Craig Macmillan, PhD
• Smoke Taint | The Australian Wine Research Institute
• SIP Certified

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Subscribe on Google Play, iHeartRADIO, iTunes, Spotify, Stitcher, TuneIn, or wherever you listen so you never miss an episode on the latest science and research with the Sustainable Winegrowing Podcast. Since 1994, Vineyard Team has been your resource for workshops and field demonstrations, research, and events dedicated to the stewardship of our natural resources.

Learn more at www.vineyardteam.org.

Dr. Tarah Sullivan is Assistant Professor of Soil Microbiology at Washington State University. In this interview, Tarah discusses how the plant microbiome mirrors the human gut, the ways in which soil microorganisms can alter the bioavailability of micronutrients and metals for plants, why plants in alkaline soils can be deficient in iron when the soil is not, if cover crops can improve soil microbial communities, and what is next for her research.

Tarah's research emphasis is on linking the function and phylogeny of the soil microbiome, specifically with regard to the interactions and impacts on metal bioavailability and soil health. Whether the context is micronutrient availability in the rhizosphere, which confers plant growth promotion and crop enhancement, or in the context of contaminated systems where bioremediation and bioaugmentation are the best options to remediate heavy metals polluted sites, the soil microbiome is key in theses biotransformations. Understanding the consortia of organisms and the mechanisms involved drives the work done in her lab with a wide array of biochemical and molecular techniques.

References:

• 12.3.19 | Water and Nitrogen Use Webinar
• 28: Understanding Soil Health (Podcast)
• 53: Producing Compost and Carbon Sequestration (Podcast)
• Digging into Soil Bacteria and Chlorosis
• Floor Management for Soil Health
• Soil Microbiology & Agricultural Sustainability | Tarah Sullivan (Podcast)
• Tarah Sullivan, Assistant Professor of Soil Microbiology, Washington State University
• Vineyard Team Membership

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Subscribe on Google Play, iHeartRADIO, iTunes, Spotify, Stitcher, TuneIn, or wherever you listen so you never miss an episode on the latest science and research with the Sustainable Winegrowing Podcast. Since 1994, Vineyard Team has been your resource for workshops and field demonstrations, research, and events dedicated to the stewardship of our natural resources.

Learn more at www.vineyardteam.org.

Gerhard (Gerry) Pietersen is a plant virologist with an interest in solving problems in South African agriculture related to plant viruses.

In this interview Gerry discusses the severe plant health and economic impacts seen in South Africa from Grapevine leafroll disease, the importance of regional buy in to establish a control program including a very successful collaboration of 50 adjoining farms in New Zealand, and new techniques to detect the virus including loop-mediated isothermal amplification (LAMP) and grafting sensitive red cultivars on white cultivars to use the shoot as an indicator.

Gerhard joined the Agricultural Research Council- Plant Protection Research Institute (PPRI), Pretoria in December, 1980 after obtaining his BSc. in Botany and Microbiology from the University of the Witwatersrand. He obtained an MSc-Microbiology at the University of Pretoria in 1984, and completed his PhD. at WITS in 1989. He spent eighteen months at Oregon State University, USA.

His current research portfolio involves; 1) control of grapevine leafroll disease caused in South Africa by grapevine leafroll associated virus type 3 (GLRaV-3) using an integrated research strategy, 2) doing research on viruses of maize as a means of pre-empting the possible incursion of maize chlorotic mottle virus into South Africa, and 3) working on Liberibacters potentially associated with citrus greening or huanglongbing diseases.

Between 2004 and 2009 he was employed by Citrus Research International (CRI) as Virologist and Program Manager, while seconded to the Department of Microbiology and Plant Pathology at University of Pretoria (UP). In 2009 he returned to the employ of Plant Protection Research Institute, while remaining seconded to UP. Gerhard has worked on viruses of many other crops during his career and has authored or co-authored 80 peer reviewed articles.

References:

• Controlling Mealybug Vectors of Grapevine Viruses | Dr. Kent Daane (Podcast)
• Optimization of grapevine leafroll detection on white cultivars by sentinel canes | Gerhard Pietersen
• Red Blotch Virus in Grapevines | Dr. Marc Fuchs (Podcast)
• Stopping the Spread of Red Leaf Viruses | Dr. Kari Arnold (Podcast)
• Sustainable Ag Expo
• Three genetic grapevine leafroll-associated virus 3 variants identified from South African vineyards show high variability in their 5′UTR | Gerhard Pietersen

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Subscribe on Google Play, iHeartRADIO, iTunes, Spotify, Stitcher, TuneIn, or wherever you listen so you never miss an episode on the latest science and research with the Sustainable Winegrowing Podcast. Since 1994, Vineyard Team has been your resource for workshops and field demonstrations, research, and events dedicated to the stewardship of our natural resources.

Learn more at www.vineyardteam.org.

Dr. Scott Steinmaus is a professor, Biological Sciences at California Polytechnic State University in San Luis Obispo. His interview covers the complexities of herbicide resistance including challenges seen in glyphosate research around resistance, information bias, and environmental and social impacts. Scott highlights the importance of “mixing it up” – reducing use, preserving the limited modes of action available, and finding alternatives.

Dr. Luca Brillante is the Bronco Viticulture Chair and Assistant Professor of Viticulture in the Department of Viticulture and Enology at California Fresno State University. Prior to this appointment he was a Post-Doc Researcher for the University of California Davis Department of Viticulture and Enology, working on precision viticulture and implementation of variable rate and site specific management approaches.

Luca discusses his current research and teaching on efficient management solutions through digital viticulture, improved accuracy and cost reduction with automation, and how he is teaching the next generation of viticulturists about sustainable wine production.

References:

• 67: Impacts of Climate Change on Wine Production | Greg Jones (Podcast)
• Applied Water and Mechanical Canopy Management Affect Berry and Wine Phenolic and Aroma Composition of Grapevine (Vitis vinifera L., cv. Syrah) in Central California | Brillante, Kurtural, Martínez-Lüscher
• Luca Brillante, Fresno State University
• Larry E. Williams Ph.D., Professor Plant Physiologist-AES, Kearney Agricultural Research & Extension Center
• Mechanization Bud Break to Bottle | Bart Haycraft (Video)
• Sustainable Ag Expo

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Subscribe on Google Play, iHeartRADIO, iTunes, Spotify, Stitcher, TuneIn, or wherever you listen so you never miss an episode on the latest science and research with the Sustainable Winegrowing Podcast. Since 1994, Vineyard Team has been your resource for workshops and field demonstrations, research, and events dedicated to the stewardship of our natural resources.

Learn more at www.vineyardteam.org.

Dr. Michelle Moyer, Washington State University Extension, and Associate Professor in the Department of Horticulture and Affiliate Faculty Member in the Department of Plant Pathology returns to the Sustainable Winegrowing Podcast after her top rated presentation on the Goldilocks Principle & Powdery Mildew Management. In this interview she discusses recent research on integrated pest management for grapevine powdery mildew, how short term weather patterns impacts farming decisions, why clean plants may have made red blotch virus more detectable, controlling wine quality with water stress and "Farming by Excel" – how fewer people working in the field has increased growers reliance on data and technology.

References:

• Goldilocks Principle & Powdery Mildew Management | Michelle Moyer (Podcast)
• Fungicide Resistance Assessment Mitigation and Extension Network (FRAME)
• Michelle Moyer, Washington State University
• Sustainable Ag Expo
• UC Davis Powdery Mildew Model
• UC Pest Management Guidelines
• Vineyard Nutrient Management in Washington State | Michelle Moyer, Dr. Stacy Singer, Dr. Joan Davenport, Gwen-Alyn Hoheisel
• Washington State University Viticulture and Enology

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Subscribe on Google Play, iHeartRADIO, iTunes, Spotify, Stitcher, TuneIn, or wherever you listen so you never miss an episode on the latest science and research with the Sustainable Winegrowing Podcast. Since 1994, Vineyard Team has been your resource for workshops and field demonstrations, research, and events dedicated to the stewardship of our natural resources.

Learn more at www.vineyardteam.org.

Gregory V. Jones is the Director of the Evenstad Center for Wine Education, holds the Evenstad Chair in Wine Studies, and is a professor and research climatologist in the Department of Environmental Studies at Linfield College in Oregon.

He specializes in the study of climate structure and suitability for viticulture, and how climate variability and change influence grapevine growth, wine production and quality.

Greg holds a BA and Ph.D. from the University of Virginia in Environmental Sciences with a concentration in the Atmospheric Sciences. He is the author of numerous book chapters, including being a contributing author to the 2008 Nobel Peace Prize winning Intergovernmental Panel on Climate Change Report.

Greg discusses what makes a crop species perform better in some places versus another, why we plant only a few hundred of the of the more than 24,000 varieties, how warm climate winegrowing regions have hedged against climate risk by growing multiple varieties, factors beyond fossil fuels that affect climate change, and our biggest challenges ahead.

References:

• 57: Wet Climate Viticulture (Sustainable Winegrowing Podcast)
• A New World of Wine: How the Viticultural Map is Changing| Greg Jones | International Masters of Wine Symposium (Video)
• Climate Change's Affect on the Wine Industry | Greg Jones | Vinexpo 2019, Bordeaux (Video)
• Climate, Grapes, and Wine | Greg Jones | TEDx Roseburg (Video)
• Climate Smart Ag and Healthy Soils | Jenny Lester Moffitt
• Connections: How climate change is impacting the wine industry| Greg Jones | Here and Now, NPR and WXXI AM News (Podcast)
• Gregory V. Jones, Linfield College
• Intergovernmental Panel on Climate Change
• Sustainable Ag Expo

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Subscribe on Google Play, iHeartRADIO, iTunes, Spotify, Stitcher, TuneIn, or wherever you listen so you never miss an episode on the latest science and research with the Sustainable Winegrowing Podcast. Since 1994, Vineyard Team has been your resource for workshops and field demonstrations, research, and events dedicated to the stewardship of our natural resources.

Learn more at www.vineyardteam.org.

Dan Rodrigues, Owner of VinaQuest has been farming his whole life. Dan oversees pest control, irrigation, replant, development, and investigates problems on winegrapes, blueberries, and avocados grown from Salinas to Northern Santa Barbara. Additionally he is a lecturer at California Polytechnic State University on viticulture practices and vineyard management.

Dan talks about how the loss of materials impacts farming; disease management for mildew, sour rot, and weeds; the effects of a wet winter; and what trends he sees for the future.

References:

• Dan Rodrigues | Dan@vinaquestLLC | 805 459-5514
• Defining and Developing Management Strategies for Sour Rot | Megan Hall, Gregory Loeb, and Wayne Wilcox
• Detection of Fungicide Resistant Mildew |Timothy Miles
• Cal Poly Wine and Viticulture
• Ecological Considerations of Vineyard Development | Dan Rodrigues (Video)
• Ecological Considerations of Vineyard Development | Dan Rodrigues (Slides)
• Fungicide Resistant Mildew | Timothy Miles (Podcast)
• In Defense of Farming | Paul Crout (Podcast)
• New Discoveries about Sour Rot | Megan Hall (Podcast)
• PMapp: A Mobile App for Assessing Powdery Mildew
• The Goldilocks Principle & Powdery Mildew Management | Michelle Moyer (Podcast)
• UC Pest Management Guidelines for Powdery Mildew
• Vineyard Floor Management: Steel in the Field | (Video)
• Vineyard Team
• Vineyard Team Educational Scholarship

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Subscribe on Google Play, iHeartRADIO, iTunes, Spotify, Stitcher, TuneIn, or wherever you listen so you never miss an episode on the latest science and research with the Sustainable Winegrowing Podcast. Since 1994, Vineyard Team has been your resource for workshops and field demonstrations, research, and events dedicated to the stewardship of our natural resources.

Learn more at www.vineyardteam.org.