Common Name: red leaf spot
Scientific Name: Drechslera erythrospila
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Red leaf spot is a disease that occurs on creeping bentgrass during warm and wet weather in the spring, summer, or fall. Red leaf spot is a ‘Helminthosporium’ disease, which is a complex of diseases caused by fungi that produce large, cigar-shaped spores. Symptoms of red leaf spot appear in spots or irregular patches that are red or reddish-brown. On individual plants, symptoms appear as small, red or reddish-brown leaf spots with a tan center. As the lesions expand and coalesce, the turfgrass leaves become blighted and collapse to the ground. |