This year, when konjac was sown, the soil was full of rain, and the soil was full of moisture. The seedlings were neat and the seedlings were good. However, the humidity in the field was high. Some konjak plots with poor seed treatment before seeding or seed treatment did not produce soft rot and dermatophyte. At the beginning, all localities must earnestly strengthen field inspections and do a good job in prevention and control. Prevention methods are as follows:
1, pharmacy irrigation roots. Disease prevention and treatment should be mainly prevention. After konjac saplings are treated with pesticides, they are treated with 50% thiophanate-methyl (thiophanate-methyl) 400-500 times solution or 50% carbendazim 400-500 times solution. Root, 100-200 ml liquid per plant, to prevent the spread of pathogens.
2, remove diseased plants. After the emergence of konjac, when the diseased plant in the center of the field appears, the diseased plant is removed in a timely manner, brought out of the field and burned, and the lime powder is disinfected on the diseased point, or treated with thiophanate-methyl or carbendazim. Disinfection treatment to prevent the spread of pathogenic bacteria.
3, field control. After the konjac plants are scattered, a large-area spray control shall be carried out. The control agents may be selected from dragon's bacterium, Kebo, copper hydroxide, anti-virus maggots, and the like, and the concentration of 800-1200 times liquid is used to prevent and cure once every 7-10 days. Prevention 3-5 times.
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