| 词汇 | powdery-mildew |
| 释义 | powdery mildew noun[ U ] uk /ˌpaʊ.dər.i ˈmɪl.djuː/ us /ˌpaʊ.dɚ.i ˈmɪl.duː/ a plant disease in which the leaves and stems are covered in a white powder-like substance caused by a fungus(= organism that gets its food from decaying material or other living things): This crop is more resistant than wheat to powdery mildew and other fungal infections. If the plants are too close together, they may succumb to diseases such as powdery mildew. The crops are treated with fungicides to control powdery mildew. The imported vines brought with them diseases such as powdery mildew. These strawberries are resistant to powdery mildew, a common problem with many summer-fruiting varieties. An outbreak of powdery mildew destroyed their first crop. Plant pathology anthracnose antifungal apple scab ash dieback auxin canker downy mildew dry rot Dutch elm disease etiolated excrescence fungicidal leaf rust leaf scorch leaf spot nodal organophosphate pesticide scald sterility Comparedowny mildew |
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