| 释义 |
downy mildew
noun[ U ]
uk /ˌdaʊ.ni ˈmɪl.djuː/ us /ˌdaʊ.ni ˈmɪl.duː/
a plant disease in which the backs of the leaves become yellow, because of attack from fungi(= organisms that get their food from decaying material or other living things):
Usually farmers don't see downy mildew until late summer.
The roses in these beds have had a history of downy mildew.
Fungal diseases such as downy mildew can occur in wet, humid conditions and are spread by water splash and wind.
Downy mildew usually appears well after cucumbers are harvested.
Alliums may suffer from common onion problems such as downy mildew.
SMART Vocabulary: related words and phrases
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antifungal
apple scab
ash dieback
auxin
canker
dry rot
Dutch elm disease
etiolated
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fungicidal
fungicide
leaf scorch
leaf spot
nodal
organophosphate
pesticide
potato blight
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sterility
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powdery mildew
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