Simulations of Fungicide Runoff Following Applications for Turfgrass Disease Control

Plant Disease
P Vincelli

Abstract

Computer simulations of fungicide loading in surface water runoff were conducted with fungicides commonly used in golf course fairways and lawns in Kentucky. For all fungicides, values for degradation half-life and organic carbon partition coefficient were obtained from published sources; other input parameters were selected to simulate conditions typical in local swards. Spray programs were tested using a 21-year period of weather data for Lexington, KY. Predicted amounts of fungicide in runoff were determined, and predicted fungicide concentrations in runoff (mg/liter) were compared with 50% lethal concentration (LC50) values for rainbow trout and Daphnia magna. All simulated chlorothalonil applications produced runoff with concentrations that greatly exceeded the LC50 values for both indicator species. For some applications, concentrations of azoxystrobin, iprodione, and pentachloronitrobenzene exceeded LC50 values of at least one indicator species. Under the conditions simulated, runoff concentrations of metalaxyl, propiconazole, thiophanate methyl, and triadimefon were well below LC50 values of the indicator species. Although actual amounts of fungicide loaded into runoff were relatively low, these simulations suggest that...Continue Reading

References

Jun 13, 2001·Journal of Environmental Quality·D A Haith
Oct 2, 2001·Journal of Environmental Quality·D S Gardner, B E Branham
Jul 31, 2002·Pest Management Science·Dave W BartlettBob Parr-Dobrzanski
Apr 24, 2003·Journal of Environmental Quality·Douglas A Haith, Frank S Rossi

❮ Previous
Next ❯

Citations

Jun 8, 2010·Journal of Environmental Monitoring : JEM·K W King, J C Balogh
Oct 31, 2009·Journal of Environmental Quality·Kirsten E KramerKevin W King
Apr 29, 2015·Environmental Science and Pollution Research International·Shane M HanlonMatthew J Parris
Aug 21, 2018·The Science of the Total Environment·Chris D MetcalfeTamanna Sultana
Mar 6, 2019·Environmental Science & Technology·Jochen P ZubrodRalf B Schäfer

❮ Previous
Next ❯

Related Concepts

Related Feeds

Antifungals

An antifungal, also known as an antimycotic medication, is a pharmaceutical fungicide or fungistatic used to treat and prevent mycosis such as athlete's foot, ringworm, candidiasis, cryptococcal meningitis, and others. Discover the latest research on antifungals here.