Forage brown spot mainly occurs on leguminous pastures, with diseases such as alfalfa, sand-grass, turfgrass and white clover. The main parts of the infestation are the roots and roots, causing the roots and roots to turn brown, showing water stains and rot to die. The site of the disease produces white flocculent mycelium in the spring, followed by the formation of small nodular black sclerotia. The disease often results in the lack of seedlings, ridges, or pods as a result of the disease. The pasture grass has poor growth. Control methods 1. Deeply turn the land prepared for planting grasses to prevent the germination of sclerotia. 2. Forage seeds are sown in brine with a specific gravity of 1:1.03 to 1:1.0 before sowing to remove the mixed sclerotia in the seeds and then sow the pasture. 3. After planting pasture, in the summer and autumn season, thiophanate-methyl, carbendazim and other fungicides can be sprayed, and the use of drugs can be controlled 2 or 3 times. The interval between drugs is 15 days. For severely affected land plots, it should be reversed.
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