Herbicidal Composition

Abstract

The present invention relates to a herbicide composition comprising a first compound, belonging to the aryloyxphenoxyproprionate family, and a second compound, belonging to the cyclohexanedione family. Said composition is characterized in that the first compound and the second compound are present in said composition at a ratio varying from 1:1.5 to 1:4. The present invention also relates to a method for controlling at least one weed capable of developing in a crop field for a plant to be cultivated with said composition of the invention. Finally, the use of the herbicide composition for treating a dicot crop is also claimed.

1 . A method of controlling a weed capable of developing in a cropped field of cultivated plants, the method comprising:
 a) providing a herbicidal composition comprising synergistic amounts of a first compound belonging to an aryloxyphenoxypropionate family, and a second compound that is clethodim, wherein the first compound and the second compound are in a mass ratio of 1:2 to 1:4 respectively;   b) diluting the herbicidal composition in an aqueous solution; and   c) applying the diluted herbicidal composition to a cropped field of cultivated plants to control at least one weed.   
     
     
         2 . The method of  claim 1 , wherein the first compound is selected from the group consisting of haloxyfop, propaquizafop, quizalofop-p-tefuryl, flauzifop-p-butyl-fenoxaprop-ethyl, isomers of the foregoing compounds, salts of the foregoing compounds and combinations of one or more of the foregoing. 
     
     
         3 . The method of  claim 1 , wherein the second compound is selected from the group consisting of clethodim, cycloxydim, tepraloxydim, isomers of the foregoing compounds, salts of the foregoing compounds and combinations of one or more of the foregoing. 
     
     
         4 . The method of  claim 1 , wherein the first compound is applied at a rate of between 8.5 to 315 g/ha and the second compound is applied at a rate of between 20 to 670 g/ha. 
     
     
         5 . The method of  claim 1 , wherein 0.2 to 1.5 L of the herbicidal composition is diluted in a total volume of about 50 to about 300 L of an aqueous solution. 
     
     
         6 . The method of  claim 1 , further comprising the step of mixing the herbicidal composition with an adjuvant oil prior to step b). 
     
     
         7 . The method of  claim 1 , wherein the at least one weed is a grass. 
     
     
         8 . The method of  claim 7 , wherein the weed is selected from the group consisting of annual bluegrass ( Poa annua ), couch grass ( Elytrigia repens ), bromeae ( bromus  sp.), regrowth of cereals, including winter wheat regrowth ( Triticum aestivum ), barley ( Hordeum vulgare ), rye-grass ( Lolium  sp.), blackgrass ( Alopecurus myosuroides ), hairy crabgrass ( Digitaria sanguinalis ), barnyard grass ( Echinochloa crus - galli ), common millet ( Panicum miliaceum ), foxtail millet ( Setaria  sp.), and  sorghum  ( Sorghum halepense ). 
     
     
         9 . The method of  claim 1 , wherein the cropped field comprises a dicotyledonous crop. 
     
     
         10 . The method of  claim 9 , wherein the dicotyledonous crop is selected from the group consisting of oilseed rape ( Brassica napus ), beetroot ( Beta vulgaris ), peas ( Pisum sativum ), sunflowers ( Helianthus annuus ), flax ( Linum usitatissimum ), soybeans ( Glycine max ) and lucerne ( Medicago sativa ). 
     
     
         11 . The method of  claim 1 , wherein the first compound is applied at a rate of between 10 to 30 g/ha and the second compound is applied at a rate of between 20 to 60 g/ha.