Through April 6-7, we conducted a survey of the mid-term management of winter potato and found that the main diseases that have recently emerged are: late blight and ring rot. The main insect pests are locusts and small tigers. The guidance and prevention method is: Potato late blight: 75% chlorothalonil and 58% metalaxyl manganese zinc were sprayed and sprayed once every 10 days and sprayed 2-3 times; followed by ground tigers sprayed with 2.5% field dragon EC on water; 10% on locusts. Chlorella, the time of administration, due to the high temperature, applied after 4pm.
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