Transformation Products of the Urea Herbicide Dymron in Soils

Masaaki UCHIYAMA
1984 Journal of pesticide science  
Soils of three different types were treated with a relatively high dosage level (30 ppm) of [carbonyl-14C]labeled dymron, 1-(a, a-dimethylbenzyl)-3-(p-tolyl)urea and were incubated at 30oC under upland and flooded conditions. The evolution of 14C02 from 14C-dymron was less than 1% of the initial radioactivity during 6 months of incubation in all cases. Evidences showed that soil microbes play an important role for the degradation of dymron. The major transformation products identified were
more » ... urea, p-tolylurea, 4'-hydroxymethyl derivative (compound IV) and 4'-carboxy derivative (compound V). The formation of cumylurea was the main transformation pathway of dymron in the soils under upland and flooded conditions.
doi:10.1584/jpestics.9.433 fatcat:4pgsn2uvenamhlwxwik5pxkvd4