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Grape Leafroll Disease

Grape Leafroll Disease. Perrin Collins University of Georgia. Grape Leafroll Virus. Why is GLD important?.

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Grape Leafroll Disease

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  1. Grape Leafroll Disease Perrin Collins University of Georgia

  2. Grape Leafroll Virus

  3. Why is GLD important? “Yield reductions directly attributable to GLD vary, but reductions in the neighborhood of 50% (or more if the disease is severe) are commonly reported on a worldwide basis.” –Dr. Naidu Rayapati Effects of GLD Detrimental to grape quality: -pH, sugars, berry weight Berry Maturity Reduced vine vigor and fruiting

  4. PCR Results

  5. Georgia Grape Quality Tests

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