Select resistant varieties, soak seeds with warm water of about 50 °C before sowing to reduce the source of black rot in the field. After seed dressing with new high-fat film, it can be planted, which can isolate virus infection and increase the emergence rate of broccoli.
Sowing at the right time, the seedlings should be checked frequently after the seedlings are unearthed, and the diseased seedlings and weak seedlings should be removed in time to ensure the growth of the seedlings in the field and reduce the infection rate of the bacteria. During the growth of the plant, the water should be topdressed 2 to 3 times to prevent premature senescence of the plant and enhance its disease resistance. Field irrigation should be guarded against flooding to reduce the spread of germs.
Field cultivation should try to avoid artificial wounds on plants and reduce the path of infection. Infected black rot plants, timely spraying and prevention, can be mixed with new high-fat membranes with targeted drugs to transform high-toxic pesticides into poisoning, poisoning pesticides are low-toxic, low-toxic pesticides are slightly toxic. Reduce the dosage per acre and increase the control effect multiple times.
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