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false smut

A disease caused by Ustilaginoidea virens. The fungus transforms individual grains of the panicle into greenish spore balls that have a velvety appearance. The spore balls are small at first and enclose the floral parts. They are covered with a membrane which bursts as a result of further growth and the color of the ball becomes orange and later yellowish green or greenish black. (Also known as grain smut)

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  • D.Herbert
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