Sichuan Liuyuan of Guangyuan City (133****3944) October 4th Q: The local planting of rice generally has a rubbing phenomenon at the time of ripening. The rice stem stalk is both black and soft, and the black rice straw has black seeds like rapeseed kernels. Small particles. What is the cause of the problem? How to prevent and treat it in the future?

Shaanxi Nongxin Investment Holdings Co., Ltd. Zhang Rong A: According to the readers' description, there may be the following two diseases: The first may be the rice sclerotium stem rot, caused by Pediococcus sclerotiorum and small black Sclerotinia disease, can be harmful Sheath and stem base, can be used as agents such as iprodione, vinyl ribonuclease, etc.; second is rice sheath blight, and now prevention and treatment mainly include hexaconazole, tebuconazole, propiconazole, phenyl ether and other agents.

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