Bayer/Monsanto suffered another in a long string of setbacks in its battle to grow genetically modified (GM) corn in Mexico when the country’s highest court on October 13 refused to overturn a precautionary injunction restricting the cultivation of GM corn. In its unanimous decision, the court agreed with the citizen petitioners who sought the injunction in 2013 that cultivation of GM corn poses a credible threat to Mexico’s rich store of native corn biodiversity through uncontrolled cross-pollination.