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
March Against Monsanto our kids." Out of her anger, frustration, and concerns for the health of her children, Canal developed the idea for a "March Against Monsanto" social media campaign. Canal started a Facebook social media campaign on February 28, 2013. She stated: "For too long, Monsanto has been the benefactor of corporate subsidies and political favoritism ... Organic and small farmers suffer losses while Monsanto continues to forge its monopoly over the world's food supply, including exclusive patenting rights over seeds and genetic makeup." She argued that Monsanto benefited from corporate subsidies and political favoritism and that its patent rights over the