Method of Use of a Synergistic Composition

Abstract

This invention relates to a synergistic composition made of a herbicidally effective amount of a propanil-based product, such as SUPER WHAM® and the at least one ACCase inhibitor herbicide such as CLINCHER® in an amount sufficient to facilitate the herbicidal activity of the propanil-based herbicide. It has been found that this synergistic composition, when applied to a field of rice, allows a reduction in the amount of herbicide needed, greater flexibility in timing of the application and broad spectrum of weed control.

1 . A method to control weeds while cultivating rice in a field, comprising the step of:
 (a) applying a synergistic composition comprising as it active ingredient an herbicidal compound: said herbicidal compound including an herbicidally effective amount of a propanil based herbicide and a synergistically effective amount of at least one ACCase inhibitor herbicide.   
     
     
         2 . The method of  claim 1  wherein said at least one ACCase inhibitor is selected from the group consisting of: cyhalofop and fenoxaprop. 
     
     
         3 . The method of  claim 1  wherein said at least one ACCase inhibitor is selected from the group consisting of: sethoxydim, clethodim, diclofop, fluazifop, quizalofop, clefoxydin and haloxyfop. 
     
     
         4 . A method to control weeds while cultivating rice in a field comprising the steps of:
 (a) applying a herbicidally effective amount of propanil based herbicide to said fluid; and   (b) applying a synergistically effective amount of at least one ACCase inhibitor to facilitate herbicidal activity of said propanil based herbicide.   
     
     
         5 . The method of  claim 4  wherein said propanil based herbicide and said at least one ACCase inhibitor are applied within 24 hours of each other. 
     
     
         6 . The method of  claim 4  wherein said at least one ACCase inhibitor is selected from the group consisting of: cyhalofop and fenoxaprop. 
     
     
         7 . The method of  claim 4  wherein said at least one ACCase inhibitor is selected from the group consisting of: sethoxydim, clethodim, diclofop, fluazifop, quizalofop, clefoxydin and haloxyfop.