Herbicidal compositions comprising 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl)pyridine-2-carboxylic acid or a derivative thereof and a sulfonylaminocarbonyltriazolinone

Abstract

A herbicidal composition containing (a) a compound of formula (I): or an agriculturally acceptable salt or ester thereof and (b) a sulfonylaminocarbonyltriazone herbicide, or an agriculturally acceptable salt or ester thereof.

What is claimed is: 
     
         1 . A synergistic herbicidal composition comprising a herbicidally effective amount of (a) a compound of the formula (I) 
       
         
           
           
               
               
           
         
       
       or an agriculturally acceptable salt or ester thereof and (b) a sulfonylaminocarbonyltriazone herbicide, or an agriculturally acceptable salt or ester thereof, wherein the agriculturally acceptable ester of formula (I) is not a benzyl ester. 
     
     
         2 . The composition of  claim 1 , wherein (a) is a C 14  alkyl ester of compound (I). 
     
     
         3 . The composition of  claim 1 , wherein (a) is the compound of formula (I), which is the carboxylic acid. 
     
     
         4 . The composition of  claim 1 , wherein the sulfonylaminocarbonyltriazone herbicide is flucarbazone, propoxycarbazone, thiencarbazone, or a salt or ester thereof. 
     
     
         5 . The composition of  claim 1 , wherein (b) is flucarbazone or a salt or ester thereof. 
     
     
         6 . The composition of  claim 1 , wherein (b) is propoxycarbazone or a salt or ester thereof. 
     
     
         7 . The composition  claim 1 , further comprising a herbicide safener. 
     
     
         8 . The composition of any of  claims 1 - 7 , wherein the weight ratio of compound of formula (I) or agriculturally acceptable salt or ester thereof to the sulfonylaminocarbonyltriazone herbicide or agriculturally acceptable salt or ester thereof is from 5:1 to 1:256. 
     
     
         9 . The composition of  claim 1 , wherein the weight ratio of compound of formula (I) or agriculturally acceptable salt or ester thereof to the sulfonylaminocarbonyltriazone herbicide or agriculturally acceptable salt or ester thereof is from 2:1 to 1:2. 
     
     
         10 . The composition of  claim 1 , further comprising an agriculturally acceptable adjuvant or carrier. 
     
     
         11 . The composition of  claim 1 , wherein synergy is determined by the Colby equation. 
     
     
         12 . A method of controlling undesirable vegetation comprising contacting the undesirable vegetation or applying to the soil or water adjacent thereto with the composition of  claim 1 . 
     
     
         13 . The method of  claim 12 , wherein the undesirable vegetation is controlled in cereal crops. 
     
     
         14 . The method of  claim 12 , wherein the undesirable vegetation is controlled in direct-seeded rice, water-seeded rice, transplanted rice, wheat, barley, oats, rye, sorghum, corn or maize, soybean, cotton, canola, oilseed rape, pastures, grasslands, rangelands, fallowland, turf, tree and vine orchards, aquatics, or IVM. 
     
     
         15 . The method of  claim 12 , wherein the undesirable vegetation is controlled in glyphosate, glufosinate, dicamba, imidazolinone, 2,4-D, ALS, or ACC’ ase tolerant crops. 
     
     
         16 . The method of  claim 12 , wherein the contacting is a post-emergence application, pre-emergence application, or in-water application to flooded paddy rice or water bodies. 
     
     
         17 . The method of  claim 12 , wherein the undesirable vegetation is immature undesirable vegetation.