Grape Pest Management for the Homeowner

  Rick Dunst, Viticulturist, Double A Vineyards, Inc.     Chemical pest management options for growers with only a few vines are limited. While non-restricted use pesticides can be purchased and used by anyone (meaning, anyone who reads and understands the pesticide label prior to application and applies it legally), they usually come in package …

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How to Calibrate and Use a Backpack Sprayer

  Rick Dunst, Viticulturist, Double A Vineyards, Inc.     Small vineyard owners often find that they need to spray chemicals for control of weeds, insects, and disease, but can’t justify the expense of a tractor-operated sprayer (not to mention the tractor). The need for chemical applications to control grapevine diseases can be minimized by …

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Grapevine Hardiness and Using the USDA Hardiness Zone Maps

Rick Dunst, Viticulturist, Double A Vineyards, Inc.   Winter injury caused by low winter temperatures is an important limiting factor to grape production in many regions the United States. Our Grapevine Characteristics Chart lists grape varieties by their winter hardiness according to USDA hardiness zone. Hardiness is determined by using a number of sources, including university publications, …

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