Control of phenoxyalkanoic acid herbicide-resistant weeds with 4-amino-3-chloro-6-(4-chloro-2-fluoro-3-methoxyphenyl)pyridine-2-carboxylic acid and its salts or esters
View Patent ↗4-Amino-3-chloro-6-(4-chloro-2-fluoro-3-methoxyphenyl)pyridine-2-carboxylic acid and its salts or esters effectively controls phenoxyalkanoic acid herbicide-resistant weeds despite having the same mode of action as phenoxyalkanoic acid herbicides.
1. A method of controlling the growth of weeds that are resistant to phenoxyalkanoic acid herbicides, wherein the weeds are corn poppies, comprising contacting the weeds or a locus of the weeds with an herbicidally effective amount of 4-amino-3-chloro-6-(4-chloro-2-fluoro-3-methoxyphenyl)pyridine-2-carboxylic acid or a salt or ester thereof.
2. The method of claim 1 in which the 4-amino-3-chloro-6-(4-chloro-2-fluoro-3-methoxyphenyl)pyridine-2-carboxylic acid or the salt or ester thereof is applied at a rate from about 4 gae/ha to about 70 gae/ha.