Flag Smut
Urocystis tritici

Flag Smut (Urocystis tritici) is a fungal pathogen. It is a native of Australia and was first detected in Utah in 1990.

Flag smut attacks the leaves and stems of grasses. The fungus produces grey-black lines of spores that run parallel to the leaf veins. Infected plants are often stunted and the flag leaf twisted. .

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