Good resistance to Sclerotinia sclerotiorum

Sclerotinia sclerotiorum commonly known as "white stalk", "hemp stalk", "mycosis", etc., is one of the major diseases affecting the growth of rapeseed. Rape flowering period is the most susceptible period, and it is also a critical period for the prevention and treatment of Sclerotinia sclerotiorum. General spraying 2 times, it is very important to use the first drug in the early flowering period, 7 to 10 days after the second use of good drugs, after two consecutive cases of continuous rainy days after the drug should also try to use the third drug. In order to ensure the prevention of disease, one should insist on using enough water to a dose of 50-60 kilograms per mu when it is used. Second, it is necessary to adhere to rough spray and spray from the flower to the base stem to form a protective layer on the surface of the plant. Plant lower stem and leaf spray. Commonly used agents are thiophanate-methyl, vinyl ribonucleic acid, carbendazim, iprodione, procymidone, prochloraz manganese salt and so on. It should be noted that S. sclerotiorum pathogens have generally produced resistance to carbendazim, and the use of sclerotia net, procymidone, prochloraz, ethamazole, propiconazole, and their blending agents are effective. . In addition, the yellow leaves, old leaves, and diseased leaves in the lower part of the plant were removed at the flowering stage of rape, and the removed leaves were taken out of the field for treatment.

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