Grower Education

Articles of interest primarily to growers and vineyard managers, but also to winegrape buyers and other winery professionals.

Vineyard Irrigation Distribution Uniformity

What is Irrigation Distribution Uniformity?   The Lake County Winegrape Commission has assembled two Distribution Uniformity Test kits for growers to borrow and use in their vineyards. The DU Test kits have instruction in English and Spanish. Please stop by the LCWC office in Kelseyville to borrow one of the kits. Please note: Distribution Uniformity […]

Vineyard Technology: Well Sounding

A depth well sounder is used to measure the height of water in a well, explains Randy Krag of Beckstoffer Vineyards” “In order to manage our water resources, we have to know if the water table is changing. We have to know if we’re pumping sustainably. Of course it’s going to change with seasons, from […]

Vineyard Technology: Erosion Control

Randy Krag (Beckstoffer Vineyards) discusses some of the techniques used to prevent soil erosion, which he says is essential in protection of rivers, waterways, lakes, of habitat of fish and wildlife: “Soil is the foundation of how we produce quality winegrapes, so we want to protect the resource that’s out here. This is the heart […]

Vineyard Management: Site Selection

“One of the things that makes Lake County soils special is the diversity. We have fairly young soils in the valley floors, we have some very ancient soils in other areas, and we have some very recent volcanic soils up on the red hills. That diversity and our ability to put the right grapes onto […]

Vineyard Technology: Drip Irrigation

Randy Krag from Beckstoffer Vineyards explains how drip irrigation “provides a precise and uniform amount of water, exactly the amount of water that we think the vine needs in a particular period.” He says that vineyard owners used to water vines “a whole lot more than we do now.” However, he says, “it turns out […]

Vineyard Technology: Evapotranspiration

Jeff Lyon, a Lake County vineyard owner, explains that “evapotranspiration” was originally measured by placing a large pan of water in a field and then every day measuring the evaporation from the pan. He says that in the modern viticultural era evapotranspiration, or ET, is calculated based on measurable data such as relative, wind, temperature, […]

Measuring Vineyard Water Status with a Probe

Bryan Rahn, from Coastal Viticultural Consultants explains the use of an instrument to measure vineyard water status. It’s the most accurate tool used for soil moisture, says Rahn, calling it “the gold standard for soil moisture measurement.” However, the tool does have limitations, which Rahn explains. Watch the video on YouTube.

Calendar of Events

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U.S. Sustainable Winegrowing Summit West 2:00 pm
U.S. Sustainable Winegrowing Summit West @ Sonoma County, CA
Jun 6 @ 2:00 pm – Jun 7 @ 3:00 pm
Who: A gathering of regional winery and vineyard associations, engaged grower and vintner leaders, and others committed to the sustainability of their local vineyards, wineries and regions. What: Learn some of the driving forces behind consumers’ and[...]
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Implementing Sustainable Farming Practices: Water and Pest Management 8:30 am
Implementing Sustainable Farming Practices: Water and Pest Management
Jun 13 @ 8:30 am – 1:00 pm
Special Targeted Education Event for Growers sponsored by: California Sustainable Winegrowing Alliance & Lake County Winegrape Commission Welcome, Debra Sommerfield, Lake County Winegrape Commission & Clint Nelson, Vineyard Manager, Beckstoffer Vineyards – Red Hills Increasing Performance[...]
AgVenture Lite: What we know about Clear Lake 5:30 pm
AgVenture Lite: What we know about Clear Lake @ Soper Reese Community Theatre
Jun 13 @ 5:30 pm – 8:00 pm
The Lake County Chapter of California Women for Agriculture and Lake County Winegrape Growers present AgVenture Lite: What we know about Clear Lake Clear Lake is thought to be over 450,000 years old making it[...]
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LCWC Executive Committee Meeting 2:30 pm
LCWC Executive Committee Meeting @ LCWC Office
Jun 18 @ 2:30 pm – 3:00 pm
Agenda – LCWC Executive Committee, June 18, 2019
LCWC Board Meeting 3:00 pm
LCWC Board Meeting @ LCWC Office
Jun 18 @ 3:00 pm – 4:30 pm
Agenda – LCWC Board Meeting, June 18, 2019
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Master Vigneron Academy®
Master Vigneron Academy®
Jun 19 all-day
Session #6 Lake County vineyards
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