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How to control Sclerotinia sclerotiorum?

Published: 2024-11-22 Author: mysheen
Last Updated: 2024/11/22, How to control Sclerotinia sclerotiorum? The solution of soybean Sclerotinia sclerotiorum often occurs from July to maturity. the symptom of the disease is that the wet green spot appears at the base of the stem, which expands quickly, and then the woolly mycelium grows in the spot, and the epidermis breaks into hemp. Black mouse dung-like sclerotia is produced on the inside and surface of the stem.

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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