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 Insectarium Monsanto Insectarium The Monsanto Insectarium is an insectarium located within the St. Louis Zoo, in St. Louis, Missouri, United States. David Mason & Associates designed the $4 million, facility which opened in 2000. It houses educational exhibits and an active breeding and research facility. The research facility includes a window to the exhibits area and two-way communications so visitors may watch entomologists work and ask them questions. The facility also includes a geodesic flight dome cage, home to numerous rainforest flowers and butterfly species. The Monsanto Insectarium is open every day except Christmas and New Years days. Admission to the