Evidence is mounting that Monsanto's (MON) genetically modified corn is losing its effectiveness...

|About: Monsanto Company (MON)|By:, SA News Editor

Evidence is mounting that Monsanto's (MON) genetically modified corn is losing its effectiveness to bugs, the EPA says, with studies finding that rootworms on two Illinois farms had become resistant to insecticide that the corn produces. Corn accounted for $4.81B of Monsanto's sales last year, or 41% of the total.