Hello, teacher, please look at my cucumber. It has been raining and cloudy for a whole week. Is it related to the weather?

Yes, the phenomenon of cucumber and melon is mainly caused by recent rainy weather, insufficient light, less photosynthetic products and increased respiratory consumption. Cucumber plants are weak, and small melon embryos can't get enough nutrition, which leads to yellowing and falling off or infection with mold. Supplementary nutrients such as potassium dihydrogen phosphate, calcium boron micro-fertilizer, rare earth micro-fertilizer and brassinolide can be sprayed, and pyraclostrobin+thiophanate-methyl or iprodione+zhongshengmycin can be sprayed on sunny days to prevent and control the initial diseases.