Coffee Shop Blog
Rainfall, Frost, Weeds, Spring Diseases, Invasive Pests
As the 2016 El Niño returns after a month hiatus, much progress is being made towards a Drought Recovery. February had only 0.6 inch of rain, but the first two weeks of March brought 5.2 inches of rain, exactly double the long term average. Good rains in January...
ON THE NATURE OF VINEYARDS AND VINEYARD MANAGEMENT
MARCH 8, 2016. BY STAN GRANT, VITICULTURIST. The winegrape industry, like all of agriculture, is under intensifying pressure from outside. Increasingly, regulators, retailers, consumers, environmentalists, and others are weighing in on how we conduct our businesses....
EVALUATING VINEYARD SOILS IN TRENCHES
We winegrape growers invest great efforts in managing canopies, crops, and other vineyard attributes above ground. In comparison, our efforts below ground are often nominal. And yet, the vineyard below ground is essential to the success and long-term viability of our...
Control of Overwintering Structures of Grapevine Pathogens
W. Douglas Gubler, Department of Plant Pathology, University of California, Davis, CA Fungal pathogens of grapevines all produce structures that allow them to overwinter on grapevine cordons, spurs, and canes. In this way the fungi produce spores the following year...
NRCS SOIL SURVEY INFORMATION IMPORTANT TO VINEYARDS
Vineyards have two environments - one above ground and another below ground. The above ground environment is our visible domain where we can witness both atmospheric events and grapevine responses to them. In contrast, our ability to observe events underground, or...
Micronutrient Management In Vineyards
Micronutrients are mineral elements required in small quantities by plants for normal growth and development. They include iron, manganese, copper, zinc, boron, molybdenum, and chloride. The micronutrients tend be overshadowed by the macronutrients, especially...
Nitrogen Part II: Effective Nitrogen Management for Vineyards
In my last Lodi Growers Coffee Shop article, we considered nitrogen's pivotal role and impacts on grapevines. In this article, we investigate nitrogen management. As in the management of all mineral nutrients, vine nutrient demand is the place to begin development of...
Nitrogen Part I: The Pivotal Mineral Nutrient in Vineyards
In wine grape growing, nitrogen (N) receives a great deal of attention for several reasons. First, N is a component of numerous molecules essential for life, including a wide array of proteins, nucleic acids, and chlorophyll. As a result, nitrogen has broader...
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