Avoid surface runoff of fungicides from golf greens

Results from the project show little risk for contamination of the environment as long as the greens have a good infiltration capacity and surface runoff is avoided. The concentration of commonly used fungicides and their metabolites in drainage water rarely exceeded the Environmental Risk Level (ERL). In contrast, the ERL was often exceeded in surface runoff from sprayed greens during a winter with frozen soils, high precipitation and repeated freeze and thaw cycles.

Our results emphasize the importance of strict compliance with the prescribed buffer zone distance to open water when spraying fungicides on golf greens, especially shortly before the winter seasons.

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