Occurrence and Control of Soft Rot Disease in Chinese Cabbage
Soft rot is a serious disease commonly occurring in Chinese cabbage, and it often occurs in high temperature and high humidity conditions.
1, the cause of the disease (1) seed infection. The seeds of Chinese cabbage are sown directly without any treatment. It is easy for the soft rot pathogens attached to seeds to survive in the soil. When the temperature and humidity reach their growth conditions, the germs begin to reproduce. (2) Cultivate cultivation infections. The cultivation of Chinese cabbage in the same plot year after year has increased the accumulation of germs and has rapidly expanded under the appropriate conditions. In addition, Chinese cabbage and sweet potato, rape, radish, spinach and other cruciferous vegetables, will also cause "double weight" and cause bacterial disease. (3) improper cultivation. According to practical observations, the incidence of Chinese cabbage grown in Pingyi is more important than that of high-row cultivation. (4) Poor water management. In terms of watering, the incidence of large Chinese cabbage irrigated with water is more important than groundless pouring.
2. Control Measures (1) Seed Sterilization: Soak Chinese cabbage seeds for 120 hours with 4% agricultural anti-120 (vegetable-specific) liquid for 10 hours, or soak for 2 hours with 100% liquid of 15% mixed amino acid solution (manor house). Let dry after sowing. (2) Soil disinfection: Use 20% chloronitrobenzene powder and fine soil in a ratio of 1:20 to mix the soil, or use 50% soil to sterilize the insecticidal net and fine soil in a ratio of 1:30. Spread evenly on the well-prepared seed bed and sow again. (3) Drug control: When cabbage seedlings grow to 2 to 3 leaves, they should be sprayed once every 5 to 7 days with streptomycin for agriculture, or with 80% 402 antibacterial agent. (4) Treatment of diseased plants: In the course of cultivation and management, remove the diseased cabbage and use lime to spread it in the pit of the diseased plant so as not to infect it with water when watering or raining.
1, the cause of the disease (1) seed infection. The seeds of Chinese cabbage are sown directly without any treatment. It is easy for the soft rot pathogens attached to seeds to survive in the soil. When the temperature and humidity reach their growth conditions, the germs begin to reproduce. (2) Cultivate cultivation infections. The cultivation of Chinese cabbage in the same plot year after year has increased the accumulation of germs and has rapidly expanded under the appropriate conditions. In addition, Chinese cabbage and sweet potato, rape, radish, spinach and other cruciferous vegetables, will also cause "double weight" and cause bacterial disease. (3) improper cultivation. According to practical observations, the incidence of Chinese cabbage grown in Pingyi is more important than that of high-row cultivation. (4) Poor water management. In terms of watering, the incidence of large Chinese cabbage irrigated with water is more important than groundless pouring.
2. Control Measures (1) Seed Sterilization: Soak Chinese cabbage seeds for 120 hours with 4% agricultural anti-120 (vegetable-specific) liquid for 10 hours, or soak for 2 hours with 100% liquid of 15% mixed amino acid solution (manor house). Let dry after sowing. (2) Soil disinfection: Use 20% chloronitrobenzene powder and fine soil in a ratio of 1:20 to mix the soil, or use 50% soil to sterilize the insecticidal net and fine soil in a ratio of 1:30. Spread evenly on the well-prepared seed bed and sow again. (3) Drug control: When cabbage seedlings grow to 2 to 3 leaves, they should be sprayed once every 5 to 7 days with streptomycin for agriculture, or with 80% 402 antibacterial agent. (4) Treatment of diseased plants: In the course of cultivation and management, remove the diseased cabbage and use lime to spread it in the pit of the diseased plant so as not to infect it with water when watering or raining.
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