Monsanto Monsanto The Monsanto Company () was an American agrochemical and agricultural biotechnology corporation that existed from 1901 until 2018 when it was acquired by Bayer. It was headquartered in Creve Coeur, Missouri. Monsanto developed Roundup, a glyphosate-based herbicide in the 1970s, and became a major producer of genetically engineered crops. Monsanto was one of four groups to introduce genes into plants (1983), and was among the first to conduct field trials of genetically modified crops, (1987). It was one of the top 10 U.S. chemical companies until it divested most of its chemical businesses between 1997 and 2002, through a
Monsanto Bt toxin were approved by the Environmental Protection Agency, following approval by the FDA, making it the first pesticide-producing crop to be approved in the United States. Monsanto subsequently developed Bt maize (MON 802, MON 809, MON 863, MON 810), Bt soybean and Bt cotton. Monsanto produces seed that has multiple genetic modifications, also known as "stacked traits"—for instance, cotton that make one or more Bt proteins and is resistant to glyphosate. One of these, created in collaboration with Dow Chemical Company, is called SmartStax. In 2011 Monsanto launched the Genuity brand for its stacked-trait products. As of 2012, the