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
José M. Dávila Monsanto of the City of Guayama). On April 4, 2001, Dávila Monsanto died in his home in Guayama. The government of Puerto Rico named the highway that extends from PR-54 (Puerto Rico Highway 54), in Guayama, to PR-52, in Salinas the "Autopista José M. Dávila Monsanto" (the José M. Dávila Monsanto Highway). José M. Dávila Monsanto José M. Dávila Monsanto (November 2, 1905 – April 4, 2001) was a Puerto Rican politician and lawyer who in 1938 co-founded the political party "Partido Popular Democrático de Puerto Rico" (Popular Democratic Party of Puerto Rico or "PPD"). He served in the Puerto Rican