Central Sierra
University of California
Central Sierra

Foothill Grape Day 2017

Date: Thursday, May 18, 2017
Time: 7:30 a.m. - Noon (with lunch to follow)
Location: Amador County Fairgrounds, Spur Emporium Building

Download and mail-in Registration Form.

Register and pay online.

Agenda and Speakers

Welcome. Foothill research update. 

Lynn Wunderlich, UCCE Central Sierra Farm Advisor
Lynn has been the UCCE Farm Advisor in the Central Sierra for 17 years, and has served the wine grape industry since 2008. She will give an update on what she's currently seeing in the field and present the latest results from her collaborative research projects.




Keys to successful vineyard plantings.

Larry Bettiga is the UCCE Viticulture Farm Advisor in Monterey County.  He has conducted numerous studies on the effects of cultural practices, rootstock and clonal selection on grapevine growth and productivity, including recent work on the effect of planting uber vines. Larry is the 2017 American Society of Enology and Viticulture Extension Distinction Award recipient.



Studies of the three-cornered alfalfa treehopper: vector of grapevine red blotch virus.

Cindy Preto, is a PhD candidate with the UC Davis Entomology Department in the lab of Dr. Frank Zalom.  In 2016, three-cornered alfalfa treehopper was identified as a vector of grapevine red blotch virus in laboratory studies. Cindy has been conducting studies of the treehopper in alfalfa, grapevine and cover crops and will present her latest results.


Spore trapping: a new tool for powdery mildew detection.

Bryan Rahn
Bryan Rahn is President of Coastal Viticulture Consultants, Inc. and is a Certified, Professional Soil Scientist and Agronomist, and has been a consulting soil scientist and viticulturist since 1982. He has designed, developed and manages his own world class vineyards in the Napa Valley and in the San Francisco Bay area.  He is an industry leader in soil mapping, grape and wine quality enhancement, vineyard irrigation, winegrape nutrition and vineyard design.




Area-wide IPM Program for Virginia Creeper Leafhopper

Houston picture-14288-1449177907
Houston Wilson is a Post-doctoral student with Dr. Kent Daane at UC Berkeley.  Houston has studied the biology of the Virginia creeper leafhopper, a particularly devastating pest for organic grape growers. Houston will discuss his project working out an IPM strategy to manage the Virignia creeper leafhopper.






The effect of high temperatures on fruit composition.

Kaan Kurtural, UCCE Viticulture Specialist
Dr. Kaan Kurtural began November 2015 as our Cooperative Extension Specialist in Viticulture (replacing Jim Wolpert's position). Kaan has already developed numerous projects in viticulture, and will discuss his studies on the effect of high temperatures on fruit composition.




Tannin Development in the Vineyard

James Campbell
James Campbell, is a PhD candidate in the UC Davis Department of Viticulture and Enology.  An Amador native, James will present his research on tannin development in the vineyard.







Lunch and wine tasting to follow the program.

**NOTE: Please bring wine to share. We will not otherwise be soliciting wine donations.**

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