UPDATE 1-USDA approves Monsanto's new GMO soybeans, cotton
January 15, 2015 at 13:58 PM EST
Jan 15 (Reuters) - Monsanto Co. received final U.S. approval on Thursday for herbicide-tolerant crops to be used with a new herbicide the company says will fight problematic weed resistance on farm fields, but critics say will only worsen the problems.