1. Agronomic measures. Persist in rotation, the former scorpion is suitable for cruciferous, legume and onion and garlic crops, avoiding continuous cropping with solanaceous and melon crops. Temporary shallow cultivating to avoid soil compaction. Add organic fertilizer and phosphorus and potassium fertilizer to promote the stable growth of roots and leaves and enhance plant resistance. Once the disease is found in the field, it should be removed in time, brought to the field for burning or deep burial, and sprayed with the lime water or thiophanate-methyl.
2. Chemical control. In the early stage of the disease, spray 64% cream, manganese-zinc wettable powder 500 times solution or 70% ethylphosphine·manganese-zinc wettable powder 500 times solution, spray once every 5 to 7 days, even spray 2~3 Times. Root rot can be irrigated with 50% carbendazim WP 600 times or 50% metalaxyl Mn-Zn WP 600 times or Green Heng 2 500 times, each time 0.5 kg per plant, 7 days Irrigation 1 time, 3 to 4 times in a row. Bacterial wilt can be irrigated with green milk copper 600 times solution, 0.5 kg per plant per plant, once every 7 days, for 3 to 4 times.
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