Symptoms Pills with black to dark green stains or streaks are scattered on the ear. The grain near the umbilicus attached to the cob first discolored, and then the upper part appeared stained, but rarely reached the top. It develops ear rot during storage. The pathogen, Cladosporium herbarum (Pers.) Link, called multi-primary Cladosporium, belongs to the fungus Subgeronia spp. Often form a child seat. The top or middle part of the conidial stem often has partial enlargement and it is 250um in length. The surface of the conidia is densely covered with thorns, single cells or twins, and the size is 5-233-8 (um), and the majority is 8-154-6 (um). Common, widely distributed. More often found on herbs or woody plants or in soil and air. Medical Bandage,Medical Wound Sport Protect Bandage ,Surgical Auxiliary Multiple Types Bandage ,Surgical Breathable Elastic Bandage Surgimed Medical Supplies Co.,Ltd , https://www.surgimedcn.com
Transmission routes and pathogenic conditions The germs invade the grain crown from the site of growth disruption and reproduce.