DUAL ACTIVITY HERBICIDAL COMPOSITIONS COMPRISING A PHENOXY-ALKANOIC ACID DERIVATIVE AND AN ALANINE DERIVATIVE

摘要

Dual-activity herbicidal compositions. /P P These compositions comprise as active ingredients an R - (+) isomer of a phenoxy-alkanoic acid derivative, for example a dimethylamine salt of R - (+) - (4-chloro) -2-methylphenoxy) propionic or R - (+) - (2,4-dichlorophenoxy) propionic acid and an N, N-disubstituted alanine derivative, for example esters of N-bensoyl-N- (3- chloro-4-fluorophenyl) alanine, especially the esters of methyl and isopropyl. They exhibit significantly reduced antagonism to the effect of the alanine derivative on oats while maintaining activity against broadleaf weeds, making a single post-emergence application effective.