Grower Resources

Table of Contents

Emergency Preparedness: Restricted Access Program
COVID-19 Coronavirus Resources
Weather and Climate
Market Research
Lake County Winegrower Vineyard Signage Program
Spotted Lanternfly Pest Alert
Sustainable Winegrowing Information
Wildfire Resources
Water/Drought Resources
Lake County Viticultural Soils
California Grape Crush Reports
Lake County Crop Reports

Emergency Preparedness: Restricted Access Program

The Lake County Restricted Access Program was established to assist commercial agricultural producers in completing critical work during emergencies to reduce significant production loss to commercial agriculture. The program consists of two steps: Step 1) the process to verify the commercial agricultural business operation, and Step 2) the verification of the critical need and issuance of a permit for temporary restricted access.

Growers are encouraged to obtain commercial agricultural verification (Step 1) well in advance of any emergencies. In most cases, this will expedite permit issuance (Step 2) during a restricted access order.

Find program details and the required forms on the Lake County Department of Agriculture website.

COVID-19 Coronavirus Resources

View a list of useful health and business resources, including available business assistance programs and information to help protect you, your family, and your colleagues.

Weather and Climate

View current weather data, download climate reports, and sign up to receive Lake County weather alerts on the Weather & Climate Resources page.

Market Research

Learn about supply and demand trends and forecasts for Lake County wines and winegrapes in “Supply and Demand for Lake County Winegrapes and Wines,” a custom research report prepared by Christian Miller of Full Glass Research. Commissioned by the Lake County Winegrape Commission, the research report provides both quantitative and qualitative data with an emphasis on Lake County’s two main varietals – Cabernet Sauvignon and Sauvignon Blanc – and includes results from a comprehensive 2014 survey of Lake County winegrape buyers.

Lake County Winegrower Vineyard Signage Program

The Lake County Winegrape Commission has established a Vineyard Signage Program designed to support local winegrowers in branding their own vineyards and to convey a professional image of the region as a whole. View more information and download an order form.

Spotted Lanternfly Pest Alert

News from the PD/GWSS Board

The invasive spotted lanternfly, which is spreading throughout the northeast and mid-Atlantic, is a threat to California’s vineyards, nurseries, and urban, suburban, and rural environments. In addition to keeping this destructive pest out of California, knowing what to look for and what to do if you spot it are key.

Keep Spotted Lanternfly Out of California
Keep Spotted Lanternfly Out of California-Spanish

This pest alert and other spotted lanternfly communications tools, in English and Spanish, can be found on the PD/GWSS Board website.

Spot the Spotted Lanternfly? Snag it. Snap it. Report it.
CDFA Pest Hotline: 1-800-491-1899
Report online:
Learn more about the pest

Sustainable Winegrowing Information

According to CSWA, sustainable winegrowing is:

  • Good for the environment – Sustainable winegrowing preserves natural resources, improves air and water quality, and protects ecosystems and wildlife habitat.
  • Good for the community – Sustainable winegrowing helps growers and vintners be stewards of both natural and human resources, preserving open space and providing scenic landscapes.
  • Good for grapes and wine – Sustainable practices require in-depth attention to detail and continuous improvement resulting in high quality California winegrapes and wine.

View a list of resources that can assist in the process of becoming Certified Sustainable.

Wildfire Resources

Wildfires have impacted many regions across the state of California over the past several years. Most Lake County vineyards suffered little or no damage in these fires – and in some cases even acted as a firebreak that helped to slow the spread of fires. For growers who were impacted, resources for remediation and rebuilding are available. Information is available on the Wildfire Resources page.

Water/Drought Resources

In response to the statewide drought situation, the Lake County Winegrape Commission has gathered the following resources and information relevant to Lake County winegrowers.

Water Stewardship in Drought Conditions: On May 13, 2021, the Lake County Winegrape Commission and Lake County Farm Bureau collaborated to present Water Stewardship in Drought Conditions, a webinar focused on managing water during a drought. View a recording of the webinar.

CVC Stress Index: Chart provided by Bryan Rahn, Coastal Viticultural Consultants

Top Four Myths of the California Drought: Pervasive myths about water use continue to circulate in the media. Help separate myth from fact with this post from the Northern California Water Association. Click to read more.

Vineyard Water Use in Lake County, California (December 1, 2014) by Glenn McGourty, Winegrowing and Plant Science Advisor, UCCE Mendocino and Lake Counties, et al. A brief summary of vineyard water use in two of the main winegrape growing areas in Lake County – Big Valley and Red Hills. Click to view document.

Water Stewardship in Drought Conditions: On April 9, 2015, the Lake County Winegrape Commission, Lake County Farm Bureau, and UC Cooperative Extension collaborated to present Water Stewardship in Drought Conditions, an in-depth seminar focused on the state of water in Lake County. Download speaker presentations from the event.

Lake County Farm Drought Response: On February 26, 2014, the Lake County Winegrape Commission partnered with the Lake County Farm Bureau to present Lake County Farm Drought Response, a forum for drought-related information exchange. View a video of the event. (2 hours, 55 minutes)

Living with Drought: A one-stop resource compiled by UC Cooperative Extension with links to several UC, state, and national resources.

Vineyard Irrigation with a Limited Supply of Water: Presentation by Glenn McGourty, UC Cooperative Extension, Lake and Mendocino Counties.

NOAA Drought Monitor: The North American Drought Monitor (NADM) is a cooperative effort between drought experts in Canada, Mexico and the United States to monitor drought across the continent on an ongoing basis.

California Department of Food and Agriculture: The California Department of Food and Agriculture maintains a Drought Resource web page as a valuable tool for farmers, ranchers, and farmworkers seeking information about the drought in California and available assistance programs.

Drought Information: Information gathered by the County of Lake Water Resources Department.

For insight into water-related viticultural practices in Lake County, view a number of short educational videos in the Grower Education section.

Lake County Viticultural Soils

The USDA Natural Resources Conservation Service maintains a soil survey of all the soils in the nation. To find the soil type(s) for a specific parcel, go to the Web Soil Survey (WSS).

Click on the big green button to begin (Start WSS). Select state and county, click View. Then, using the tools in the upper left section of the map area, zoom in or out to navigate to the parcel, then click the AOI tool to select the specific parcel. The results will identify your Area of Interest with blue hash marks; click the Soil Map tab at the top to view the various soil types by number. To the left of the map, a list will show each soil type by name and percent. Click on each soil type for more information.

For detailed information about specific Lake County soil types to assist with soil evaluation and site management, refer to the USDA’s document, Soil Survey of Lake County, California.

California Grape Crush Reports

2020 Final Grape Crush Report (Errata)
2019 Final Grape Crush Report
2018 Final Grape Crush Report
2017 Final Grape Crush Report
2016 Final Grape Crush Report
2015 Final Grape Crush Report
2014 Final Grape Crush Report
2013 Final Grape Crush Report
2012 Final Grape Crush Report
2011 Final Grape Crush Report

Lake County Crop Reports

2019 Crop Report
2018 Crop Report
2017 Crop Report
2016 Crop Report
2015 Crop Report
2014 Crop Report
2013 Crop Report
2012 Crop Report
2011 Crop Report
2010 Crop Report
2009 Crop Report
2008 Crop Report
2007 Crop Report
2006 Crop Report
2005 Crop Report
2004 Crop Report
2003 Crop Report

Calendar of Events

Sun Mon Tue Wed Thu Fri Sat
LCWC Finance Committee Meeting 2:00 pm
LCWC Finance Committee Meeting @ LCWC Office and Video Conference
May 2 @ 2:00 pm – 3:30 pm
Agenda – LCWC Finance Committee Meeting, May 2, 2022
LCWC Community & Industry Relations Committee Meeting 3:00 pm
LCWC Community & Industry Relations Committee Meeting @ LCWC Office and Video Conference
May 3 @ 3:00 pm – 4:30 pm
Agenda – LCWC Community Industry Relations Committee Meeting, May 3, 2022
LCWC Executive Committee Meeting 1:00 pm
LCWC Executive Committee Meeting @ LCWC Office and Video Conference
May 10 @ 1:00 pm – 2:00 pm
Agenda – LCWC Executive Committee Meeting, May 10, 2022
LCWC Board Meeting 2:00 pm
LCWC Board Meeting @ LCWC Office and Video Conference
May 10 @ 2:00 pm – 4:30 pm
Agenda – LCWC Board Meeting, May 10, 2022
Webinar – Water Resilience for Vineyards in Drought 8:00 am
Webinar – Water Resilience for Vineyards in Drought
May 11 @ 8:00 am – May 12 @ 12:00 pm
Webinar – Water Resilience for Vineyards in Drought
  Join some of the top experts in viticulture and water to learn about policy, regulations, and strategies to cope with drought in vineyards. When: May 11 – 12, 8:00 AM – 12:00 PM Topics include:[...]
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