Quantification and remediation of pesticides in runoff water from containerized plant production

• Published in: Journal of environmental quality Vol. 27; no. 4; pp. 814 - 820
• Main Authors: Briggs, J.A. (Clemson University, Clemson, SC.), Riley, M.B, Whitwell, T
• Format: Journal Article
• Language: English
• Published: Madison, WI American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America 01.07.1998; Crop Science Society of America; American Society of Agronomy
• Subjects: Agronomy. Soil science and plant productions; AGUA DE ESCORRENTIA; AGUAS RESIDUALES; BIODECONTAMINACION; Biodegradation of pollutants; Biological and medical sciences; BIOREMEDIATION; Biotechnology; chlorpyrifos; CONTROL DE LA CONTAMINACION; Cynodon dactylon; EAU DE RUISSELLEMENT; EAU USEE; Environment and pollution; Fundamental and applied biological sciences. Psychology; Industrial applications and implications. Economical aspects; INLAND WATERWAYS; isoxaben; LUTTE ANTIPOLLUTION; PESTICIDE; PESTICIDES; PLAGUICIDAS; PLANT PRODUCTION; POLLUTION CONTROL; PRODUCCION VEGETAL; PRODUCTION VEGETALE; RUNOFF WATER; Soil and water pollution; Soil science; VEGETATED WATERWAYS; VIAS DE NAVEGACION INTERIOR; VOIE D'EAU INTERIEURE; WASTEWATER; Chlorpyrifos; Nitro compound; Irrigation; Cultural practice; Monocotyledones; Insecticide; Pesticides; Ornamental crop; Container growing; Runoff water; Fungicide; Herbicide; Assay; Decontamination; Benzimidazole derivatives; Gramineae; Angiospermae; Benzamide derivatives; Organophosphorus compounds; Spermatophyta; Water pollution; Trifluralin; Bioremediation
• ISSN: 0047-2425; 1537-2537
• DOI: 10.2134/jeq1998.00472425002700040014x

During containerized plant production pesticides may move from application site in runoff water created by overhead irrigation systems. In this study, four pesticides, isoxaben [N-[3-(1-ethyl-1-methylpropyl)-5-isoxazolyl]-2, 6-dimethoxybenzamide], trifluralin (2,6-dinitro-N,N-dipropyl-4-trifluoromethylaniline), chlorpyrifos (0,0-diethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate) and thiophanate-methyl (dimethyl 4,4'-o-phenylene bis(3-thioallophanate)), were applied at a commercial plant nursery. Overhead irrigation after application generated runoff water which was channeled into waterways of clay/gravel or hybrid bermudagrass [Cynodon dactylon (L.) Pers. x C. transvaalensis Burtt-Davy]. Isoxaben was detected in runoff water through 4 d after application (DAA). Other pesticides were detected primarily on the day of application (DOA). Thirteen percent of applied thiophanate-methyl was recovered from the clay/gravel waterway and 11% from the grass waterway. Total amounts of isoxaben lost were 23% of total applied in both treatments. Less than 0.01% of applied chlorpyrifos and trifluralin were detected. Isoxaben amounts recovered from the grassed waterway on the DOA were 16% lower than from the clay/gravel treatment. Thiophanate-methyl amounts were 18% lower from the grassed treatment on the DOA. The results suggest that vegetated waterways can reduce pesticide losses from application site in runoff water