How to control Sclerotinia sclerotiorum?
How is soybean sclerotinia disease to how to control? Solved soybean sclerotium disease mostly occurs in July to before maturity, the symptoms of the disease is that the stem base first appears wet green spots, quickly expanded, and then in the disease spots grow woolly mycelium, epidermal rupture into hemp, stem and surface produced black rat dung "sclerotium", especially in rainy wet, plant planting too dense or continuous cropping conditions, the disease is more serious, secondary disease mainly sclerotium in the soil, or in the seed more In the second year, ascocarp grew under suitable temperature and humidity, spores were transmitted to soybean plants by wind for primary infection, and then mycelium grew from the disease spots to cause repeated infection. After the secondary disease occurs, spray 40% chlorothioate WP 1500-2250 g mixed with water 450-600 kg/ha, or spray 50% carbendazim WP 500- 600 g mixed with water 450- 600 kg/ha. In order to effectively prevent soybean sclerotium disease, pay attention to removing sclerotium mixed in seeds before sowing, burn soybean plants on the infected land, deeply turn over, bury the bacteria deeply underground, Implement reasonable crop rotation and try to avoid repeated cropping. Click to see more soybean planting technology Click to see more food crop planting technology
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How do you know what kind of fertilizer soybeans lack?
What method is used to treat soybean sclerotinia disease? Soybean Sclerotinia sclerotiorum mostly starts from the middle and lower branches of the main stem of the plant. The disease spot is waterlogged, irregular, light brown or nearly white, which can surround the stem and spread up and down.
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What is soybean gray spot disease and how to prevent it?
What is soybean gray spot disease and how to prevent it? Ask to instruct soybean gray spot disease: (1) harm and symptom soybean gray spot disease calls brown spot disease again, spot disease or frog eye disease. Soybean gray spot is a worldwide disease, and also an important disease in main soybean producing areas in China, especially in Northeast China. The pathogen is located in the eastern part of Heilongjiang Province.
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