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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