St. Louis-based Monsanto is planning to spend millions of dollars to defeat a measure on the ballot in Oregon. Oregon is the first state to put an issue on the ballot that would require genetically modified food be labeled. Monsanto and others in the biotech and food industries plan to spend $6-Million in an effort to defeat the measure. Those pushing for its approval say they can afford to spend only $150,000 on their campaign. Monsanto officials say labeling would drive up grocery costs, because at least 70-percent of processed food in the US contains engineered ingredients.