UCCE Sonoma County
University of California
UCCE Sonoma County


Rhonda J Smith, Viticulture Farm Advisor

Winegrape production in Sonoma County totals over four hundred million dollars annually and accounts for the greatest revenue of all agricultural crops in the county.  The viticulture program provides education and outreach to winegrape growers to improve viticultural practices and address issues facing viticulture in the county.

The Viticulture Program works with commercial growers and university staff to conduct research in the following areas:

  • Pest Management
  • Irrigation
  • Pierce's Disease
  • Berry Shrivel
  • Plant Growth Regulators
  • Red Blotch Disease

Note: The Viticulture Farm Advisor is available to work with commercial winegrape growers in Sonoma County.  Those interested in a hobby vineyard should consult the Sonoma County Master Gardeners.


University of California Cooperative Extension, Sonoma County
133 Aviation Blvd Suite 109, Santa Rosa, CA 95403  Phone: 707.565.2621  Fax: 707.565.2623
Office Hours:  M-F, 8am-Noon & 1pm-4pm

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