Degradation of oxadiazon [2-tert-butyl-4-(2, 4-dichloro-5-isopropoxyphenyl-A2-1, 3, 4- oxadiazolin-5-one (111, a preemergent soil-applied herbicide, by a soil fungus, Fusarium solani (Mortius) Sacc., has been investigated. F. solani, isolated from soil by enrichment culture technique, degraded the herbicide 1 by cometabolic process. Eleven metabolites have been isolated, out of which three metabolites (MI, M2, and M3) were characterized ...