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Gary Y. Gao,
Ohio State University Extension,
Clermont County;
Barbara Bloetscher, C. Wayne Ellett Plant and Pest Diagnostic Clinic; Joseph F. Boggs, Ohio State University Extension, Hamilton County/Southwest District; Pamela J. Bennett, Ohio State University Extension, Clark County; Jane C. Martin, Ohio State University Extension, Franklin County; Joseph W. Rimelspach, Ohio State University Extension, Plant Pathology; John R. Street, Ohio State University Extension, Horticulture and Crop Science; Erik A. Draper, Ohio State University Extension, Geauga County |
Medallion 50 WP, produced by Syngenta Turf and Ornamentals, is now available to manage turfgrass and many ornamental diseases. It is a protectant fungicide. Its active ingredient is fludioxonil. This is the first fungicide based on phenylpyrrole chemistry, which differs from other fungicide products on the market today.
Medallion's formulation requires lower application rates, resulting in less active ingredients (a.i.) per gallon of solution. Although re-treatment may be necessary every 14 days when the disease is active, Medallion provides good curative control of many turfgrass diseases such as brown patch, leaf spot, summer patch, and pink or gray snow mold, if used in conjunction with an integrated, preventive disease management program. It can also be mixed with other fungicides to control turfgrass diseases, depending upon label directions. Apply with sufficient water to provide good coverage and avoid damage to plants from overlap or drift.