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词汇 apple-scab
释义 apple scab
noun[ U ]
uk /ˈæp.əl ˌskæb/ us /ˈæp.əl ˌskæb/
a disease of apple trees that causes dark marks on the leaves and fruit:
Apple scab, a fungal disease, isn't just unsightly, it also seriously affects the yield.
Research has shown that one of the best ways to combat apple scab is to collect the fallen leaves from infected trees in autumn and burn them.
Apple scab can spread very quickly so make sure you act quickly when you first identify it.
The dark blotches of apple scab that appear on the leaves soon spread to the apples themselves.
SMART Vocabulary: related words and phrases

Plant pathology
anthracnose
antifungal
ash dieback
auxin
avirulent
canker
dry rot
Dutch elm disease
etiolated
excrescence
fungicidal
fungicide
leaf scorch
leaf spot
nodal
organophosphate
pesticide
potato blight
scald
sterility
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