Grape root cancer is a bacterial disease. The bacteria resides in the soil and part of the disease. Control methods: strict quarantine and seedling disinfection. It is forbidden to introduce seedlings and cuttings from the wards when constructing the garden. If diseased plants are found in the seedlings, the diseased plants should be completely burned out; when the diseased plants are found in the field, the soil around the roots can be opened first, the cancerous tumors can be removed, and then high concentrations of limestone can be coated. The mixture or Bordeaux mixture protects the wound and disinfects the soil with 1% copper sulfate. The serious diseased plants should be excavated in time, and the surrounding soil should be thoroughly disinfected; the cultivation and management should be strengthened, and more organic manure should be applied. Appropriate application of acidic fertilizers should be used to make it unfavorable to the growth of pathogens. When agricultural operations are carried out, it is necessary to prevent rooting and to rationally arrange drainage and irrigation flow in the ward and non-disease areas so as to reduce human-to-human transmission.
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