Environmental Behavior of the Chiral Herbicide Haloxyfop. 2. Unchanged Enantiomer Composition in Blackgrass (Alopecurus myosuroides) and Garden Cress (Lepidium sativum)

• Published in: Journal of agricultural and food chemistry Vol. 63; no. 10; pp. 2591 - 2596
• Main Authors: Buerge, Ignaz J, Bächli, Astrid, Heller, Werner E, Keller, Martina, Poiger, Thomas
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 18.03.2015
• Subjects: Gas Chromatography-Mass Spectrometry; Herbicides - chemistry; Herbicides - metabolism; Kinetics; Lepidium sativum - chemistry; Lepidium sativum - metabolism; Molecular Structure; Plant Leaves - chemistry; Plant Leaves - metabolism; Plant Roots - chemistry; Plant Roots - metabolism; Poaceae - chemistry; Poaceae - metabolism; Pyridines - chemistry; Pyridines - metabolism; Soil Pollutants - chemistry; Soil Pollutants - metabolism; Stereoisomerism; enantioselective GC−MS; Alopecurus; enantioselective metabolism; Lepidium; haloxyfop

Haloxyfop-methyl is a chiral herbicide against grasses in dicotyledonous crops. In plants and soil, haloxyfop-methyl is rapidly hydrolyzed to haloxyfop-acid, whose R-enantiomer carries the actual herbicidal activity. In soil, S-haloxyfop-acid is converted within less than 1 day and almost completely...