Wine education – mildew in grape vines, what’s all the fuss this year?

downy mildew

Downy mildew is indigenous to north-eastern North America where it spread from wild vines into cultivated vineyards. It probably came over to Europe during the phylloxera crises when native American rootstock were being tested for their resistance to the disease that wiped out around two thirds of Europe’s vineyards.

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