| abstract |
The present invention relates to 4-amino-3-chloro-6- (4-c-loro-2-fluoro-3-methoxyphenyl) pyridine-2-carboxylic acid and the agriculturally acceptable salts or esters thereof are useful in methods for the selective post-emergent control of unwanted vegetation in the presence of sunflowers, sorghum, yellow mustard, spring canola juncea, spring crespa cabbage, spring turnip, spring nabicol, spring guaza rape, or beet. |