New generation of protox-inhibiting herbicides.

Abstract Benzfendizone belongs to the 2-[(4-heterocyclic-phenoxymethyl)-phenoxy]alkanoate class of herbicides which are potent inhibitors of the plant enzyme protoporphyrinogen oxidase (Protox). Benzfendizone, when applied postemergence, provides control of a number of key grass and broadleaf weeds in orchards and no-till crop situations. Benzfendizone can also be used as a potato desiccant and cotton defoliant. Crops such as soyabean and corn showed no injury when planted 2–3 days following postemergence application of benzfendizone.