In laboratory studies under dark, aerobic conditions flufenoxuron undergoes hydrolysis resulting in cleavage of molecule. The fluoroaniline and the toluyl moieties lead to the N-[4-[2-chloro-4-(trifluoromethyl) phenoxy]-2- fluorophenyl urea metabolite (Reg.No. 4064702, max 15.6% of AR), which is further degraded to Reg. No. 241208 (amine derivative) found in trace amounts (< 1%) and mainly to non-extractable residues. These residues reach 46.3% 150 DAT (toluyl) and 34-45.7% 119-152 DAT (fluoroaniline). Mineralization is very low for both labels and CO2 is 6.7% 150 DAT (toluyl) and 0-5.1% 119-152 DAT (fluoroaniline). With the benzamide-moiety no distinct metabolite could be detected in soil indicating that the degradation rate of the possibly formed difluorobenzoic acid is faster than the formation out of flufenoxuron. With this moiety mineralisation as high as 52.5% (120 DAT) was observed, with bound residues accounting for max. 25.2% (120 DAT).