| abstract |
The invention relates to herbicidal compositions comprising a herbicidally effective amount (a) of a pyridine carboxylic acid herbicide or an N oxide, an agriculturally acceptable salt or ester thereof, and (b) a photosystem II inhibitor or an agriculturally acceptable salt or ester thereof. The invention also relates to methods for controlling unwanted vegetation, which comprises applying (a) a pyridine carboxylic acid or an N-oxide herbicide, an agriculturally acceptable salt or ester thereof, and (b) a a photosystem II inhibitor or an agriculturally acceptable salt or ester thereof, on vegetation or on an area adjacent to vegetation or on the ground or in water, to prevent the emergence or growth of vegetation, ( a) and (b) are respectively added in a proportion sufficient to produce a herbicidal effect. |