Corn, soy beans, alfalfa, sugar beets. All these crops have been genetically modified by Monsanto and its GM brethren to the point where there are virtually no alternatives for farmers. GM corn accounts for 86% of the country's supply. More than 90% of the soy beans have been altered. Sugar beets are half the country's sugar supply, and 95% of those seeds are from Monsanto.
All told, Monsanto, DuPont (NYSE: DD ) , and Syngenta (NYSE: SYT ) control 53% of the world's seed production, yet their control of our food supply is almost all-encompassing, because they cross-license their technology between themselves and with other companies.
Monsanto recently agreed to share its technology with Dow Chemical (NYSE: DOW ) and Bayer (and vice versa), while DuPont and Bayer similarly expanded their collaboration. Syngenta is cross-pollinating Dow's AgroSciences division with its GM technology.
Yet, the one crop that has been saved from being altered up until now has been wheat. Not that Monsanto hasn't tried, as it experimented with modifying its DNA to make it resistant to its Roundup herbicide. Fields in 16 states including Arizona, California, Florida, Nebraska, and Oregon were used to test Roundup Ready wheat seed.