Pesticides associated with the turfgrass industry have been detected in storm runoff and surface waters of urban watersheds, inferring contaminant contributions from residential, urban, and recreational sources. Golf course turf often requires multiple applications of pesticides at rates that exceed those typically found in agricultural or home environments. The objective of this study was to quantify concentrations of fungicides transported in snowmelt and rainfall runoff from creeping bentgrass turf managed as a golf course fairway. Chemographs from rainfall runoff occurring within days of fungicide application showed fungicides in the initial runoff and throughout the runoff event. Snowmelt collected nearly four months after fungicide application contained fungicides and a degradation product. Loads of fungicides measured in the edge-of-turf runoff were used to calculate estimated environmental concentrations of fungicides anticipated to occur in surface waters receiving the snowmelt and rainfall runoff. Concentrations were compared to known toxicological endpoints to evaluate environmental risk.

Offsite transport of fungicides with snowmelt and rainfall runoff   from golf course fairway turf

244th National Meeting (2012)

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