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Entomology Image Gallery > Plant Diseases and Damage > Corn > Cladosporium Ear Rot Cladosporium ear rot Cladosporium herbarum and other species often infect kernels damaged by insects, hail, or frost. This fungus appears gray to black or very dark green, and can have a powdery appearance. It also causes black streaks in the kernels. This disease can be fairly common but usually does not cause extensive damage to the ears. This image appears in the following articles: Identifying ear rot diseases (October 1996)Identifying ear rot diseases (October 1996) |