Symptoms are also known as sesame shell spores. The lesions on the leaves are angular, dark brown at first, then gray, dark brown dots on them, and no ridges. The pathogenic Ascochyta sesami Miura is called Aspergillus sesameensis, a fungus belonging to the fungus Aspergillus. Conidiophores are spherical, dark brown, 80-100 μm in diameter, with openings, growing in host tissues and partially exposed. Conidiophore Spindles, colorless, twin cells, size 103 (μm), few unit cells, elliptic, size 53 (μm). Transmission routes and pathogenic conditions The pathogens stayed in the soil as conidiospores with the diseased bodies, and the conidiospores produced early infestation and re-infestation in late spring. Summer rain and rain or relative humidity higher than 90% were easy to cause. The management of extensive continuous cropping or plant growth is weak. Otoscope Ophthlmoscope,High Quality Otoscope Ophthlmoscope,Otoscope Ophthlmoscope Details, CN Wuxi Biomedical Technology Co.,Ltd , https://www.wxbiomedical.com
Prevention methods (1) rotation. (2) Remove the diseased body promptly after harvest. (3) Drain the water immediately after rain to prevent moisture from staying. (4) Strengthen field management, appropriate time seedlings, timely cultivating, and enhance plant resistance to disease. (5) Chemical control See sesame black spot.