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mildew on oats; loose smut of oats | |||
black loose smut of oat (Ustilago avenae) | |||
black loose smut of oats (Ustilago a venae (Pers.)Rostr.); blight on oats (Ustilago avenae (Pers.) Rostr.); loose smut of oats (Ustilago avenae (Pers.) Rostr.) | |||
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loose smut of oats |