In a blow to proponents of biotechnology, Archer-Daniels-Midland, one of the largest grain processors in the U.S., is telling its corn and soybean suppliers to begin segregating genetically modified crops from conventional crops. The company’s shift is a clear sign that the consumer backlash over genetically modified crops in Europe and Asia is beginning to have significant effects in the U.S. ADM said it wants to be able to supply a growing number of foreign companies that don’t want genetically modified crops. The move, which could discourage U.S. farmers from buying biotech seed, was applauded by enviros and British food retailers.