Hazardous symptoms: Chinese cabbage soft rot disease mainly harms the junction of the base and stem of the petiole of Chinese cabbage. At the early stage of disease, translucent water stains appear. With the development of the disease, the peripheral leaves are wilting and drooping under the sunlight, and can be restored sooner or later. The petioles at the base of the petiole and the rhizome of the rhizomes were rotted in later stages and were stained with brownish soft rot, smelly and oozing from the juice. Another symptom is that the pathogen first invades from the base of the Caixin causing the disease, the outside looks normal, and finally the whole plant decays.
Control methods: 1. Rotate as much as possible, not continuous cropping; 2. Use disease-resistant varieties first; Use deep-groove high-bay cultivation; 3. Prevent pests in time; 4. Chemical control, use 72% agricultural streptomycin wettable powder 5000 times liquid , Or copper hydroxide wettable powder 800 times, spraying 1, 7 days after spraying once.
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