Clopyralid and compost: Formulation and mowing effects on herbicide content of grass clippings

From: Compost Science & Utilization | Date: October 1, 2003| Author: Bary, Andy; Cogger, Craig; Miltner, Eric | Copyright information

The presence of clopyralid, a selective broadleaf herbicide, in compost near Spokane, Washington in 2000 was attributed to grass clippings collected from area lawns and subsequently used as compost feedstock. A field study was conducted in 2001 to evaluate the effects of herbicide formulation and mowing practice on the clopyralid content of grass clippings. The objective was to develop guidelines that would limit the concentration of clopyralid in clippings, thereby reducing the amount of clo...

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