Patent ID: 7973218

Claim:
A method for controlling weeds in an area of cultivation, the method comprising: a) planting the area with crop seeds or crop plants, wherein the crop seeds or crop plants comprise: i) a first polynucleotide encoding a polypeptide that can confer tolerance to glyphosate operably linked to a promoter active in the crop seeds or crop plants; and ii) a second polynucleotide encoding an ALS inhibitor-tolerant polypeptide operable linked to a promoter active in the crop seeds or crop plants; and b) applying to any of said crop seeds, said crop plants, said area of cultivation or a combination thereof, a synergistically effective amount of a herbicide composition comprising at least one of glyphosate and a sulfonylurea herbicide comprising metsulfuron-methyl, or agriculturally suitable salts thereof, wherein at least one of: i) the amount of the glyphosate is lower than an amount of glyphosate required to control the weeds in the absence of the sulfonylurea herbicide; ii) the amount of the sulfonylurea herbicide comprising metsulfuron-methyl is lower than an amount of the sulfonylurea required to control the weeds in the absence of glyphosate; and iii) combinations thereof; and wherein the synergistically effective amount of the herbicide composition is tolerated by the crop seeds or crop plants and controls the weeds in the area of cultivation.