Symptoms mainly affect the leaves. At the beginning, irregular lesions were formed on the leaves, light brown, reddish-brown or purple-red at the edges, and black spots at the late stage of the disease, that is, the pathogenic fungus capsule shell.
The pathogen Mycosphaerella hlolci Tehon said that the sorghum is a bacterium of the genus Ascomycota. Asccus cavity black, spherical, orifice papillary. Ascospore cylindrical, colorless. Ascospores are colorless, transparent, two-celled, nearly spindle-shaped, and slightly larger on the cells. In addition, there are reports of M. Ceres Sacc. It is also known as cyanobacteria, which can also cause the disease.
Transmission routes and pathogenic conditions The pathogens overwinter on sick and sick bodies. Asthenospores are scattered in late spring. They spread through wind and rain and invade from the host's stomata, causing morbidity.
Control methods generally do not need to be controlled alone, and if necessary, they can be combined to prevent and cure other sorghum leaf spot diseases.
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