Bugs Damaging Monsanto Corn May Do Same to Syngenta Crops
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Rootworms, the most costly pest affecting the U.S. Corn Belt, are showing signs of resistance to Syngenta AG (SYNN)’s genetically modified corn just as they do with crops developed by Monsanto Co. (MON), researchers said at a conference.
Switzerland’s Syngenta, the world’s largest producer of crop chemicals, and St. Louis-based Monsanto compete to supply farmers with corn containing a genetic trait that enables it to produce its own pesticide. Rootworm resistance, first documented last year in Iowa and suspected in Illinois, Minnesota and Nebraska, is forcing farmers to spray crops with the kind of chemical pesticides the modified corn was supposed to avoid.
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