Agricultural Commissioner's Office


Agricultural Commissioner Sealer of Weights and Measures

Greg Clark 1

Agricultural commissioner's office 

The Napa County Agricultural Commissioner and staff are responsible for the implementation of federal, State and local regulatory programs within Napa County. These programs are designed to protect people and the environment and to promote agriculture within the county. Napa County currently has a reputation as a premier wine-producing region, but, as history has shown, also has the climate and soils capable of producing many types of exceptional agricultural products 



Food Quality and Marketing

Direct Marketing, Farmers' Markets, Organic Registration, Standardization

Pesticide Safety Program   

CalAgPermits, Continuing Education Resources, Pesticide Container Recycling, Pesticide Use Enforcement


Pests and Diseases  

European Grapevine Moth, Vine Mealybug, Glassy-winged Sharpshooter, Light Brown Apple Moth, Brown Marmarated Stink Bug

Bring in an insect for identification (learn more) 

Weights and Measures

Device Registration Ordinance, Quality Control of Packaged Goods, Weighing and Measuring Devices

Wildlife Services

Introduction to the Program, Tips to Prevent Wild Animal Encounters 



Fire Resources


Napa County Resource Conservation District 

The Napa RCD is available to help with your fire recovery. Find out how by visiting their website.

Looking for resources? Check out the Post-fire resource page.


Napa County Resources 


Planning, Building and Environmental Services



1195 Third Street Napa CA 94559


Napa County Public Works

Roads/Natural Resources

1195 Third Street Napa CA 94559


Napa County Public Health and Human Services Agency 

2751 Napa Valley Corporate Drive, Building B Napa, CA  94558

(707) 253-4270


 Farm Service Agency Message   

Information about and applications for FSA disaster programs will be taken at the following Napa County locations this week:
Today 10:00 AM – 2:00 PM
Napa County Farm Bureau
811 Jefferson Street
Napa CA 94559
Disaster Recover Workshop on Friday, November 17th
Calistoga Community Center
1307 Washington Street

Calistoga CA

FSA administers many safety-net programs to help producers recover from eligible losses, including the Livestock Indemnity Program [LIP] for livestock that died as a result of the fire), the Emergency Assistance for Livestock, Honeybees, and Farm-Raised Fish Program [ELAP] for any produced or purchased feed that was destroyed as a result of the disaster that’s not eligible for any other programs [e.g. LFP and NAP], and the Noninsured Crop Disaster Assistance Program [NAP] producers who paid the 2018 administrative fee can submit a Notice of Loss for grazing acreage that was burned as a result of the fire).  The FSA Emergency Conservation Program (ECP) provides funding and technical assistance for fence and conservation structure (e.g. troughs, tanks or pipe) replacement and debris removal.      

 Vacaville Service Center, Farm Service Agency - Solano/Napa Counties    

 810 Vaca Valley Parkway Suite 102 - Vacaville CA 95688    

 (707) 448-0106     

 (844) 206-7067 FAX    

Viticulture Resources    

UC Davis, Viticulture and Enology: Smoke taint     

Central Coast Vineyard News:  Review of the impacts of smoke taint   

 Wildfire & Recovery resources on the UCCE-Napa website    


Wildfire Recovery Webinar

Weren't able to make it to the November 1st meeting on "Wildfire Recovery"? You're in luck! 

Here is the link of the recorded webinar from the November 1st meeting, “Wildfire Recovery: Assessing Vineyard & Forest Health, and Erosion Control”.

Please note: It will only be available live for approximately 30 days on the web. Watch now! 

Other Department Information


Buy Plants Locally!

Buy plants in Napa County where they are inspected for Glassy-winged sharpshooter egg masses. Your help has kept this important vector of Pierce’s disease out of the County for over 15 years. The health of the Napa County vineyards and economy depends on this effort!

Don't Bug Out PSA
Buy Local Plants PSA


European Grapevine Moth Eradicated from California!

The European Grapevine Moth has been eradicated from California and the quarantine restrictions have been lifted!

CDFA News Release
EGVM Information

VMB Seminar 2017

2017 Vine Mealybug Seminar

In February 2017, the Ag Commissioner's Office and the Napa County Pest and Disease Control District sponsored a free informational Vine Mealybug Seminar for local grapegrowers. PDFs of the PowerPoint presentations are now available!

Ag Commissioner's Office 2016 Update
Ag Commissioner's Office 2016 Update in Spanish
VMB Challenges- Grower Perspective
VMB Challenges- Grower Perspective in Spanish
VMB Biological Control and Mating Disruption
VMB Biological Control and Mating Disruption in Spanish
VMB Chemical Control Options
VMB Chemical Control Options in Spanish