PH AND WATER QUALITY EFFECT ON PESTICIDE SPRAY SOLUTION

April 23rd, 2017
PH AND WATER QUALITY EFFECT ON PESTICIDE SPRAY SOLUTION

Water is going to be the primary carrier of your agricultural chemicals. It will have the job of delivering pesticides to the plant, fungal spores or insect to achieve the goal of protecting your vines. Water quality is determined by chemical properties such as pH (measure of acidity and alkalinity) and the level of inorganic minerals present (water hardness as determined by level of minerals such as calcium, magnesium, potassium,…

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ANOTHER PERSPECTIVE ON REGULATIONS

April 11th, 2017
ANOTHER PERSPECTIVE ON REGULATIONS

Every Winter grape growers in San Joaquin and other counties in California attend update meetings sponsored by their local agricultural commissioner’s office.  At those meetings they learn about the latest in state and federal pesticide regulations, worker safety requirements, nitrogen fertilizer reporting requirements and the like.  Inevitably there is grumbling as the growers chafe under the every-increasing burden of regulations. On top of that, many growers voluntarily choose to submit…

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FROST MANAGEMENT STRATEGIES FOR VINEYARDS

April 3rd, 2017
FROST MANAGEMENT STRATEGIES FOR VINEYARDS

The rarity of early season frosts is among the many natural assets of California that lend themselves to winegrape growing.  Still, when frosts occur the results can be economically devastating, with low revenues for the growing season due to significant yield loss (Fig 1).  In some instances, with prolonged, very cold temperatures, shoot damage and reduced yields are unavoidable.  Fortunately, temperatures during many frost events are slightly below freezing and…

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NRCS LOCKEFORD PLANT MATERIALS CENTER OPEN HOUSE APRIL 5

March 28th, 2017
NRCS LOCKEFORD PLANT MATERIALS CENTER OPEN HOUSE APRIL 5

The Lockeford Plant Materials Center is a 106-acre facility located in the Central Valley of California and is the only PMC within the state. There are 27 PMCs around the country, with each one serving a specific ecological and geographic area. The CAPMC addresses the resource concerns within the Mediterranean climate areas of California. We work with NRCS field offices, public agencies, universities, conservation organizations, tribes, commercial seed producers and…

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INTRODUCING WENDY BRANNEN

March 16th, 2017
INTRODUCING WENDY BRANNEN

Being the World’s Greatest Wine Region Doesn’t End after a Year… What an exciting time to jump into the Commission as your new Executive Director. It’s not often that one walks in the door of a new workplace and new industry as they are celebrating the 25th anniversary of the organization, the 30th anniversary of a unique region, and have just been awarded one of the industry’s highest honors. In…

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HOW TO AVOID COMMON ERRORS ASSOCIATED WITH AERIAL VIGOR MAPPING

March 7th, 2017
HOW TO AVOID COMMON ERRORS ASSOCIATED WITH AERIAL VIGOR MAPPING

  The use of aerial imaging to measure vine vigor is nothing new in the wine industry. In fact, most vineyard owners and managers currently utilize some form of vigor mapping in their vineyards to aid their decision making. Long considered the industry standard, the most common measure of vine vigor has been the Normalized Difference Vegetation Index, or NDVI. What many do not know, however, is that NDVI was…

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BIOLOGICAL CONTROL OF VINE MEALYBUG

February 6th, 2017
BIOLOGICAL CONTROL OF VINE MEALYBUG

For years I have attended educational meetings in which the vine mealybug (Planococcus ficus) was portrayed as some kind of super-pest. I was told why it was so much worse than the grape mealybug and also why biological control would not work on it. In fact, I was told this as recently as last month by an entomologist with a Ph.D. from U.C. Berkeley. I believed it, more or less….

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NITROGEN FERTILIZER FORMS

January 4th, 2017
NITROGEN FERTILIZER FORMS

by Stan Grant, Viticulturist It is a fact: chemistry is fundamental to life. It is also a primary means to directly influence grapevines, especially their mineral nutrition. Thankfully, our modern mineral nutrient toolbox includes a wide array of chemical tools for this purpose. To use them appropriately and effectively, we need to know about their characteristics and their behaviors in vineyards. In this article, we will focus on attributes and…

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CRUSH DISTRICT 11 VINEYARD COST STUDY RELEASED

December 28th, 2016
CRUSH DISTRICT 11 VINEYARD COST STUDY RELEASED

We are VERY happy to report that UC Davis has released the 2016 vineyard cost study for Crush District 11 Cabernet Sauvignon. Click here for the study: UC Davis 2016 Crush District 11 Vineyard Cost Study The 23-page study represents the efforts of: Paul S. Verdegaal, Farm Advisor, UC Cooperative Extension, San Joaquin County Daniel A. Sumner, Director, UC Agricultural Issues Center, Professor, Department of Agricultural and Resource Economics, UC Davis Jeremy Murdock,…

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2017 GREEN MEDAL AWARD APPLICATIONS ARE OPEN

December 19th, 2016
2017 GREEN MEDAL AWARD APPLICATIONS ARE OPEN

Third Annual California Green Medal: Sustainable Winegrowing Leadership Awards California vineyards and wineries are encouraged to apply for the 2017 California Green Medal: Sustainable Winegrowing Leadership Awards. Applications are being accepted at www.greenmedal.org now through February 3rd, 2017. The California Green Medal is presented by California Sustainable Winegrowing Alliance, California Association of Winegrape Growers, Wine Institute, Lodi Winegrape Commission, Napa Valley Vintners, Sonoma County Winegrowers and The Vineyard Team. A number…

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Event Calendar
  1. Grower Marketing Committee Meeting

    August 23 @ 12:00 pm - 2:00 pm
  2. Executive Committee Meeting

    August 24 @ 1:00 pm - 2:00 pm