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2018 Sonoma County Grape Day

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Thursday, February 8, 2018

***Santa Rosa Veterans Memorial Building***

1351 Maple Ave, Santa Rosa, CA.

IMPORTANT VENUE CHANGE - Vets Building, not the LBC! 

Click here for directions



  7:00 Sign-in and Continental Breakfast. Sponsored by the Sonoma County Winegrape Commission

  8:00 Rhonda Smith, UCCE Sonoma County, Growing vines in site infested with X. index

  8:30 Walt Mahaffee, USDA Ag Research Service, What the mildew? Grape powdery mildew resistance and new tools for management

  9:30 Kaan Kurtual, UC Davis, Source-sink influence on ripening and fruit composition

10:00 Break

10:20 Larry Williams, UC Davis, Nitrogen mineral nutrient management in California vineyards

11:00 Luca Brillante, UC Davis, Steps in mechanical canopy management

11:30 Kaan Kurtual, UC Davis, Mechanical harvest tools

Noon: End of Program 

New: 1.5 hours of Continuing Education Units have been approved by the California Department of Pesticide Regulation.


$42.00 if paid no later than noon on WEDNESDAY, February 7. 
$47.00 at the door (check or cash only).

Check option: to register by mail and pay by check, click here.


If you have questions, please contact:
Rhonda Smith, UCCE Farm Advisor,, 707-565-2621 At the greeting, select "4" then at the next greeting, select "3".
Deborah Curle, Office Manager,, 707-565-2621 At the greeting, select "5" then at the next greeting, select "1".


To pay by credit card, complete the form below.

$42.00 Quantity:   required charge

When you click on "Submit Registration Information" below, you will be taken to a page that lists the name(s) you registered and the total charge.