Turfgrass disease
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Yellow Patch (Rhizoctonia cerealis). Sporadic infections of R. cerealis (yellow patch) have been observed in ryegrass over-seeded bermudagrass turf swards and sport fields. The disease is rare in the state, but it thrives in extended periods of wet, cloudy weather. It is a cool-temperature disease (50 to 65°F). Disease development is significantly suppressed at temperatures…
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Author: Alfredo Martinez-Espinoza, Plant Pathology Department, University of Georgia-Griffin Campus Large patch: To limit the severity of Rhizoctonia large patch on warm season grasses (especially on zoysiagrass), avoid nitrogen applications at this time. Regardless of fertility, preventive fungicide treatments may be required. The fungus (Rhizoctonia solani) becomes active when night temperatures fall below 60°F. Fungicides of the…
Posted in: Turfgrass disease