Powdery Mildew Research Presented at ASEV Annual Meeting
Oct 2002 Issue of Wine Business Monthly
As we pointed out in August, powdery mildew (Uncinula necator) remains a substantial concern for viticulturists. Powdery mildew is a biotropic fungus. It grows across the surface of the leaf, or the grape. The mycelia penetrate the leaf by inserting part of themselves directly into the leaf epidermal cells. Powdery mildew can cause substantial declines in yield if it is not controlled effectively. The most devastating effect that can be seen in significant powdery mildew infections occurs in the...
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