Library

Fruit Quality

Sep 5, 2019

Gregory V. Jones, Director of the Evenstad Center for Wine Education, at Linfield College in Oregon discusses climate structure and suitability for viticulture, how climate variability and change influence grapevine growth, wine production and quality, 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.

Aug 15, 2019

Dan Rodrigues, Owner of VinaQuest, 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.

Aug 1, 2019

Audra Cooper, Broker/Partner at Turrentine Brokerage talks about what wine and grape brokering is, the factors that affect grape pricing, the 2018 grape market, how sustainable certification can help set grapes apart in a crowded market, and the quality of the 2019 crop.

Jun 6, 2019

Dr. Stephanie Bolton, Sustainable Winegrowing Director, Lodi Winegrape Commission, talks about sustainable farming in the Lodi winegrowing region.

May 16, 2019

Jeff Newton President & CEO, Costal Vineyard Care Associates discusses his career and the history and future of the Santa Ynez American Viticultural Area.

Apr 4, 2019

Fritz Westover, viticulturist with Westover Vineyard Advising and Virtual Viticulture Academy describes growing conditions and challenges in multiple states in the Southeastern United States.

Mar 8, 2019
Lorenzo Genesio et al. Agriculture, Ecosystems, and the Environment

Results from four harvest-years showed a higher productivity, up to 66% with no significant differenceswere observed in grape quality parameters. The observed increase in productivity was inversely correlated with rainfall in the vegetative period. These findings support the feasibility of a biochar-based strategy as an effective adaptation measure to reduce the impact of water stress periods with no negative effects on grape quality.

Mar 7, 2019

Mark Greenspan, Ph.D., President and Viticulturist, Advanced Viticulture, Inc. shares his insights on irrigation scheduling, technology in the vineyard, and more.

Feb 22, 2019
M.D. Greenspan, K.A. Shackel, & M.A. Matthews Plant, Cell, and Environment

Diurnal changes in berry size pre- and post-veraison.

Feb 22, 2019
Mark D. Greenspan, Hans R. Schultz, and Mark A. Mathews Physiologia Plantarum

A study of how water flows into to and out of grape berries pre- and post-veraison.

Feb 22, 2019
Mark Greenspan Wine Business Monthly

Sometimes a series of short irrigations are better than one long irrigation.

Feb 21, 2019

Mark Chien shares highlights from his career helping grapegrowers in some of the most difficult growing regions in the world. From his years as a vineyard manager to Penn State viticulture extension agent, and now Program Coordinator for the Oregon Wine Research Institute.

Dec 20, 2018

Kris Beal, M.S., Executive Director of Vineyard Team, recounts some of the history of the organization, it’s current activities and what the future holds in store.

Dec 6, 2018

Dr. Kari Arnold talks about Grapevine Leaf Roll-associated Virus 3, its vector the vine mealybug, and how growers can manage the spread of viruses both within and between vineyards.

Dec 6, 2018

Dr. Kari Arnold talks about Grapevine Leaf Roll-associated Virus 3, its vector the vine mealybug, and how growers can manage the spread of viruses both within and between vineyards.

Nov 20, 2018
Craig Macmillan, Ph.D. Sustainable Ag Expo

The Brown Marmorated Stink Bug and Spotted Lantern Fly are serious pests of winegrapes in Pennsylvania and NewYork. They have the potential to spread far beyond there in the future.

Oct 18, 2018

Dr. Michael McCarthy, Principal Scientist-Viticulture, South Australia Research and Development Institute, PIRSA, describes viticultural research in Australia.

Sep 14, 2018
March 15, 2018 Tailgate, Byron Winery

Vineyard Team Technical Program Manager Dr. Craig Macmillan discusses the theory and assumptions behind crop estimation.

Aug 29, 2018
Joe DiTomasso & Guy Kyser Weed Control in Natural Areas of the Western United States

Recommendations for control of stinkwort.

Aug 29, 2018
Rachel Brownsey, G.B. Kyser & J. DiTomaso California Agriculture

Description of the weed stinkwort (Dittrichia graveolens), its rapid spread through California, and its life cycle.

Aug 29, 2018

Two articles on the spread, biology, and control of stinkwort (Dittrichia graveolens).

Aug 21, 2018
Ashley Poupart

Ashley Poupart explores why sustain practices are important to the wine and winegrape industries followed by an overview and comparison of the major sustainability certifications available to vineyards.

Aug 21, 2018
Bart Haycraft 2017 Sustainable Ag Expo

Bart Haycraft, Vineyard Manager for Jackson Family Wines Los Alamos, walks through all of the vineyard operations he has mechanized on his ranches including weed control, canopy management and efficient harvesting. Q&A for this session is found here: https://youtu.be/nC1gSjtU1QM

Aug 21, 2018
Kaan Kurtural 2017 Sustainable Ag Expo

Dr. Kaan Kurtural, Assistant Cooperative Extension Specialist with UC Cooperative Extension describes the benefits of mechanizing viticultural operations. Q&A for this session is here: https://youtu.be/JUF1FaEUudE

Aug 21, 2018
Bart Haycraft 2017 Sustainable Ag Expo

Bart Haycraft, Vineyard Manager for Jackson Family Wines Los Alamos, answers questions about the vineyard operations he has mechanized on his ranches including weed control, canopy management and efficient harvesting. The full session is found here: https://youtu.be/ItFu_50H0og

Aug 21, 2018
Kaan Kurtural 2017 Sustainable Ag Expo

Dr. Kaan Kurtural, Assistant Cooperative Extension Specialist with UC Cooperative Extension answers questions about the benefits of mechanizing viticultural operations. The main talk is found here: https://youtu.be/V6gQ-KJ_XFM

Jul 20, 2018
Sustainable Winegrowing Podcast

Check out some favorite episodes Here are ten episodes of the Sustainable Winegrowing podcast you don’t want to miss.

Jun 7, 2018

Jackie Dresser, Viticulture Extension Support Specialist at the Lake Erie Regional Grape Program talks about her work on improving the accuracy of vineyard yield estimates.

May 17, 2018

Jackie Dresser, Viticulture Extension Support Specialist at the Lake Erie Regional Grape Program talks about her work on improving the accuracy of vineyard yield estimates.

May 10, 2018
Sabbatini, Dami, & Howell Publication

Multiple crop estimation methods are described including the use of Growing Degree Days to predict final yield.

Mar 20, 2018
Davinia Font et al. Sensors

Capturing images of grapes under bright light at night is used to estimate final vineyard yield.

Mar 20, 2018
Stephen Nuske et al. Journal of Field Robotics

A vision system mounted on a vehicle automatically and accurately estimates final vineyard yield.

Mar 20, 2018
Julie M. Tarara et al. ASEV Journal

An automated system was used during three growing seasons to monitor the change in tension in the load-bearing wire of a trellis to estimate yield in vineyards.

Mar 20, 2018
Scarlett Liu et al. Proceedings of Austrlasian Conference on Robotics and Automation

A survey of automated image processing methods for estimating final vineyard yield from images.

Mar 16, 2018
Craig Macmilan Crop Estimation Tailgate-3/15/18

Improving Yield Estimates: You can improve the accuracy of your estimates when you think about the assumptions behind how and how much to sample. Slides from Dr. Craig Macmillan's talk at the Crop Estimation Tailgate-3/15/18

Mar 2, 2018
Craig Macmillan, PhD. February 23, 2018 - Monterey Pacific Inc.

A brief summary of the key points made by Dr. Tim Miles during his talk at the February 23, 2018 Fungicide Resistance Tailgate.

Mar 1, 2018

Peter Work - Owner, Winemaker, and Vineyard Manager of Ampelos Cellars - recounts how becoming a certified organic vineyard led to becoming Demeter® biodynamic certified and eventually Sip Certified®.

Feb 14, 2018
Walt Mahafee Publication

Reflections, insights, and advice on the 2017 powdery mildew season by Dr. Walt Mahaffee, Research Plant Pathologist, USDA-ARS Horticulture Crops Research Unit . Topics include timing, coverage, vine microclimate, canopy management and more.

Feb 13, 2018
James E. Adaskaveg, Doug Gubler, & Themis Michailides Publication

These excerpts from the 2017 edition of this UCIPM text describe and explain fungicide resistance and include tables listing fungicides registered for grapes with their known efficacy against various diseases and their resistance risk as of 2017.

Jan 22, 2018
Brittany Komm and Michelle M. Moyer

This article from WSU Extension provides an overview of yield estimation methods meant to improve the accuracy of your crop estimates.

Jan 8, 2018
Patrcia Skinkis Publication

How to Collect and Use Pruning Weights

Nov 2, 2017

Chandra Krintz, Ph.D., Professor of Computer Science, University of California Santa Barbara explains how scientists and engineers are working on a computer system that will help farmers make better decisions using data analytics.

Aug 25, 2017
Craig Macmillan, Ph.D. CAPCA ED

The develop of fungal diseases on grapes is a progression from powdery mildew in the spring to Botrytis in the late summer.

Aug 17, 2017

Justine Vanden Heuvel explains how computer algorithms can tell growers where to sample in the vineyard by analyzing digital images saving time and money.

Aug 3, 2017

The research of Megan Hall and others has advanced our knowledge of the etiology, epidemiology, and management of sour rot from what we knew four years ago. Her research sheds light on the role of fruit flies in this disease complex.

Jul 26, 2017
Craig Macmillan, PhD

The crop looks good and canopy growth is strong.

Jul 12, 2017
Craig Macmillan, PhD

What is smoke taint, when is the window of susceptibility, and is there anything you can do?

Jul 10, 2017

Sustainability rests on the principle that we must meet the needs of the present without compromising the ability of future generations to meet their own needs.

Jun 1, 2017

Doug Beck, Science Advisor for Monterey Pacific Inc., talks about the different types of technology used in the vineyard.

Jan 19, 2017

A grower panel discussion on preventative and management practices for grapevine trunk diseases and Red Blotch Virus management.

Nov 14, 2016
Rob Stoll

Dr. Rob Stoll, Associate Professor of Mechanical engineering at the University of Utah, presents the computer models he and his collaborators have build to show how fungal spores spread in vineyards under different conditions.

Nov 3, 2016

Larry Bettiga discusses the life cycle of bunch rot.

Dec 31, 1969

Dan Rodrigues, Owner of VinaQuest 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.