1. Select disease-resistant varieties and plant dense plants to ensure good ventilation in the field.
2. Strengthen field management and pay attention to fishing or scatter after heavy rain.
3, the early onset of the use of 70% mancozeb 500 times, or 41% of the special effects sterilization 2000 times the liquid, 20% Randy 500 times spray control. Spray once every 7 to 10 days and spray 2 or 3 times, which can effectively control the disease epidemic.
At the beginning of the disease, 70% of mancozeb 500 times liquid was used, or 41% of special effects were sterilized 2000 times, and 20% of Randy 500 times sprayed. Spray once every 7 to 10 days and spray 2 or 3 times, which can effectively control the disease epidemic.
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