NATURAL LAWS AND VINEYARD MANAGEMENT

July 24th, 2017
NATURAL LAWS AND VINEYARD MANAGEMENT

Vineyards are populations of grapevines and associated organisms supported by air, water, and soil resources.  As such, they constitute ecosystems or perhaps more precisely, agro-ecosystems.  While vineyard ecosystems are artificial, rather than natural, they are still subject to the laws of nature.  Most of these laws are so fundamental that vineyard managers and viticulturists seldom have reason to consider them. Here we will review four natural laws relevant to wine…

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IDENTIFICATION OF NUTRIENT DEFICIENCIES FROM LEAF SYMPTOMS

July 10th, 2017
IDENTIFICATION OF NUTRIENT DEFICIENCIES FROM LEAF SYMPTOMS

At the end of the growing season, grape leaves are changing color. They turn from green to shades of yellow (white varietals) or red (red varietals) – see the Magnesium deficiency symptoms below (Figures 1 & 2). This is the result of the leaf senescence process: Chlorophyll is broken down, and nitrogen and other mobile nutrients are being removed from the leaf to storage tissues in the woody part of…

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SOME COMMON VITICULTURAL BAND-AIDS

July 3rd, 2017
SOME COMMON VITICULTURAL BAND-AIDS

Solving vineyard problems can be a complex and time consuming task, as is deciding how to correct them.  The most obvious remedy is sometimes taken to be the most practical while, in reality, it treats the symptoms rather than the cause of the problem.  In this article, we will consider some of these instances. Multiple Hedging Passes Hedging, which is also sometimes called topping or tipping, increases the uniformity of…

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Event Calendar
  1. EXECUTIVE COMMITTEE MEETING

    September 28 @ 1:00 pm - 2:00 pm
  2. CD11 LODI PCA NETWORK BREAKFAST

    October 3 @ 7:30 am - 9:00 am