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Title: Effect of Sulfometuron Methyl on Ground Water and Stream Quality in Coastal Plain Forest Watersheds
Author: Neary, D.G.; Michael, J.L.;
Source: Water Resources Bulleting, American Water Resources Association, Vol. 26, No. 3.
Publication Series: Miscellaneous Publication
Description: Sulfometuron methyl [methyl 2-[[[[(4,6-dimethyl-2-pyrimidinyl)a-mino]carbonyl]amino]sulfonyl]benzoate] was applied by a ground sprayer at a maximum labeled rate of 0.42 kg ha-1 a.i. to a 4 ha Coastal Plain flatwoods watershed BS site preperation for tree planting. Herbicide residues were detected in streamflow for only seven days after treatment and did not exceed 7 mg m-3. Sulfometuron methyl was not detected in any stormflow and was not found in any sediment (both bedload and suspended). Sampling of a shallow ground water aquifer, < 1.5 m below ground surface, did not detect any sulfometuron methyl residues for 203 days after herbicide application. Lack of herbicide residue movement was attributed to low application rates, rapid hydrolysis in acidic soils and water, and dilution in streamflow.
Keywords: sulfometuron methyl, herbicide, ground water, water quality, slash pine, envimnmental fate
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Neary, D.G.; Michael, J.L. 1989. Effect of Sulfometuron Methyl on Ground Water and Stream Quality in Coastal Plain Forest Watersheds. Water Resources Bulleting, American Water Resources Association, Vol. 26, No. 3.
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