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Investigations on the Behaviour of Fenpropimorph and its Metabolite Fenpropimorphic Acid in Soils

✍ Scribed by Stockmaier, Matthias; Kreuzig, Robert; Bahadir, Müfit

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
536 KB
Volume
46
Category
Article
ISSN
1526-498X

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✦ Synopsis

The fate of fenpropimorph and its metabolite fenpropimorphic acid was investigated in a silty sand soil and in a clayey silt soil. In laboratory and field experiments fenpropimorph disappeared without a lag phase. A few days after application fenpropimorphic acid was detected. Additional laboratory experiments with ['4C]fenpropimorph emphasized the significance of mineralization and the formation of non-extractable residues.

The determination of soil/water distribution coefficients of parent compound and metabolite yielded a higher leaching potential for fenpropimorphic acid due to its higher polarity. This was confirmed by performing a laboratory column test under worst-case conditions. Under field conditions, however, fenpropimorphic acid was detected only in the superficial soil layers (0-5 cm) of both investigation sites at very low concentrations.

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