Education

Glenn McGourty pressing wine

Smoke & Winegrapes: A Conversation with Glenn McGourty

With major wildfires occurring every year in California, winegrape growers and buyers are obviously concerned about the effect of smoke on vineyards. Do wildfires necessarily mean problems for vineyards? Working in collaboration with the Lake County Winegrape Commission, UCCE Viticulture Farm Advisor Glenn McGourty set out to answer that question. “It can be difficult to […]

Lake & Mendocino Counties IPM Seminar December 13, 2019

Recap: 22nd Annual UCCE Lake and Mendocino IPM Seminar

More than 60 growers, vineyard consultants, and pest control advisers gathered at the UC Hopland Research and Extension Center on December 13 for an update on a broad range of pest management topics at the annual UCCE Lake and Mendocino IPM Seminar. The following speakers gave presentations: Matt Daugherty, Ph.D., ag biologist with the Mendocino […]

The Vine Line Podcast

The Vine Line podcast is an audio resource produced by the Lake County Winegrape Commission for grape growers and winemakers. It includes lectures and other technical presentations from across the California wine industry. You can also subscribe on Apple Podcasts.

Distribution Uniformity Kit Contents

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 testing […]

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.

Meetings

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    LCWC Executive Committee Meeting 3:00 pm
    LCWC Executive Committee Meeting @ LCWC Office and Video Conference
    Mar 12 @ 3:00 pm – 4:00 pm
    Agenda – LCWC Executive Committee Meeting, March 12, 2024
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