Patent ID: 8211831

Claim:
A method to use at least 20 percent less propanil based herbicide to control weeds, while cultivating rice in a field, comprising the steps of: applying to said field an amount of a propanil based herbicide with an herbicidally ineffective amount of fenoxaprop, to form a herbicidally effective composition, wherein the weight ratio of the herbicidal effective compound ranges from about 1 pound of propanil to about 0.0018 to 0.007 lbs. of fenoxaprop wherein the amount of propanil applied is selected from the group consisting of: the weeds are grass at 2 to 3 leaf stage and the amount of propanil is 2 pounds per acre; wherein the weeds are grass at 3 to 4 leaf stage and the amount of propanil is 3 pounds per acre; wherein the weeds are grass at 4 to 5 leaf stage and the amount of propanil is 4 pounds per acre and wherein the weeds are grass at 5 leaf stage and wherein the weeds are grass at 6 leaf stage and the amount of propanil is 6 pounds per acre.