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<h4>Powdery mildew (Erysiphe necator) is a widespread and common disease of grapes in New Zealand. Obvious as white spots which can spread across leaves producing a grey-white sporulation. Bunches are also infected with the characteristic grey-white sporulation symptoms. Winemakers detest powdery mildew as even minor infection of grapes has a detrimental effect on subsequent wine quality.</h4>


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<p>Powdery mildew (Erysiphe necator) is a widespread and common disease of grapes in New Zealand. Obvious as white spots which can spread across leaves producing a grey-white sporulation. Bunches are also infected with the characteristic grey-white sporulation symptoms. Winemakers detest powdery mildew as even minor infection of grapes has a detrimental effect on subsequent wine quality.</p>


Powdery mildew (Erysiphe necator) is a widespread and common disease of grapes in New Zealand. Obvious as white spots which can spread across leaves producing a grey-white sporulation. Bunches are also infected with the characteristic grey-white sporulation symptoms. Winemakers detest powdery mildew as even minor infection of grapes has a detrimental effect on subsequent wine quality.

Powdery mildew - Grapes

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Powdery mildew - Grapes

Erysiphe necator

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