Swiss agrochemical giant Syngenta AG said Wednesday that the U.S. Environmental Protection Agency approved its biotech product to combat corn rootworm, AP REPORTED. Syngenta said it will begin sales of corn seed containing the Agrisure RW corn rootworm trait in time for the U.S.' 2007 growing season. The U.S. is the world's largest corn market. «This new high-performing trait offers growers industry-leading control of rootworm while delivering full yield potential,» said Jeff Cox, head of Syngenta global corn and soybeans.