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Napa County UCCE
University of California
Napa County UCCE

Vineyard Views & Events

Latest information on viticulture, UC research and newly released UC publications.

Issue Articles Type Date Added
Annual Conference--AAIE

The Annual Conference of the Association of Applied IPM Ecologists (AAIE) will be held February 6-7, 2017 at the Embassy Suites in Napa, CA.

This is an opportunity to earn up to 14 Continuing Education units (pending), while exploring topics such as advances in precision agriculture, disease forecasting, farming at the ag-urban interface, pesticide licensing and safety, sprayer calibration, and pest management. 

View the full conference schedule and register online

PDF 1/17/17
Vine Mealybug Seminar - February 21, 2017

Vine Mealybug Seminar – Tuesday, February 21, 2017
Pre-registration is required. Space is limited. To register, call 707-253-4357.

Spanish: 7:30 am – 9:30 am
Agenda/Flyer (Spanish) 

English: 10:30 am – 12:30 pm
Agenda/Flyer (English) 

Yountville Community Hall
6516 Washington Street

2.0 hours of DPR CE units have been applied for. 

(Presented by the Napa County Winegrape Pest Control District in conjunction with the Napa County Agricultural Commissioner’s Office) 

Help stop the spread of Vine Mealybug in Napa County! Visit the Napa County Agricultural Commissioner’s VMB information page.

PDF 1/12/17
The Napa Vineyard Workforce, 2000-2015

We recently completed a survey of Napa vineyard employee gender diversity between 2000 and 2015 in five job categories. Our findings suggest that there has been a recent and rapid change in gender diversity, particularly in seasonal labor crews. 

Other industries have devoted considerable resources to understanding team dynamics--with the goal of optimizing performance to the benefit of both economic efficiency and worker satisfaction. However, research in agricultural settings is largely non-existent, something which we aim to rectify. 

For additional information and to support our research into Agricultural Team Dynamics, visit

For a full report of our findings to date, access the newsletter using the link below. 

PDF 11/29/16
UC Publications Opportunity - 20% Discount!

Don't miss out on this UC publication opportunity!  Enter promo code GRAPE 1617 for a 20% discount on any publication.  Effective 11/1/16-2/1/17.

See attached newsletter for a list of popular publications or you can view the list here.

If you would like to purchase a publication that is not listed or if you have any questions, please call the UCCE office at 707-253-4221.


PDF 11/1/16
Tree Assistance Program - Disaster Assistance - Grapevine Red Blotch

Tree Assistance Program (TAP) – provides financial assistance to eligible orchardists and nursery tree growers to replant or rehabilitate eligible trees, bushes and vines lost by natural disasters. Eligible trees, bushes, and vines are those from which an annual crop is produced for commercial purposes.  Trees used for pulp or timber are ineligible for TAP assistance. 

Please read the following documents for eligibility and application process:

Tree Assistance Program (TAP) Fact Sheet

Approved Disease – Grapevine Red Blotch-eligible plant disease for select counties in California

For more information on FSA disaster programs, visit or visit your local FSA county office.  Visit to find your local FSA county office.

PDF 4/12/16
Potential benefits of powdery mildew resistant grapevines

Recent research from the UC Davis Department of Agricultural and Resource Economics evaluated the potential economic benefits to California of powdery mildew resistant grapevines. (See newsletter link below).

As a follow-up to this study, the research team is collecting information on grower preferences for specific traits. We would appreciate if you could take a few minutes to respond to their survey questions

Please direct questions to Olena Sambucci,

PDF 12/10/15
Walnut Twig Beetle and Thousand Cankers Disease

In early September 2015, the California Department of Food & Agriculture confirmed the presence of thousand cankers disease of walnut in Napa County. 

Access the newsletter below for additional information on this fungal disease and the beetle that moves it from tree to tree. 

PDF 11/3/15
Sustainable Groundwater Management Act

Signed by Governor Brown on August 29, 2014

Videos from the entire day-long seminar regarding the passage of SGMA. Panel discussion of both groundwater and surface water issues in the current political and drought environments. 

View the entire day’s lecture (February 13, 2015 Water Regulation and Vineyard Management Seminar) 

Courtesy of Department of Viticulture & Enology
UC Davis 


PDF 8/13/15
Monitoring Guide for Western Grapeleaf Skeletonizer

On June 24, 2015, staff of the Napa County Agricultural Commissioner found one male Western Grapeleaf Skeletonizer in a pheromone-baited trap in a vineyard on Tubbs Lane in Calistoga. 

UCCE Advisors Lucia Varela and Monica Cooper developed a "Monitoring Guide for Western Grapeleaf Skeletonizer" so that vineyard owners, growers and workers could familiarize themselves with the pest's life stages and feeding habits.

Please use the newsletter link below to access the Monitoring Guide (English and Spanish versions). 

If you find this pest or feeding damage in Napa County please contact the office of the Agricultural Commissioner: 707-253-4357, OR contact UC Cooperative Extension: 707-253-4221,

For additional information on biology and management of this pest, access the UC IPM Pest Management Guide for Western Grapeleaf Skeletonizer

PDF 7/8/15
Arboreal Camel Cricket

In April, we observed leaf symptoms in select vineyards consistent with feeding damage by arboreal camel crickets. 

For photos and additional information, access the newsletter using the link provided below. 

PDF 6/1/15
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