"It's one thing for environmentalists to say genetically engineered crops are dangerous but now scientists at the U.S. Dept.of Agriculture are sounding the alarm, too.
Microbiologist Robert Kremer has analyzed farm soil for 20 years, the last several studying soil quality and genetically engineered (GE) plant growth. Kremer and his group say they found worrisome problems with glyphosate, the key ingredient in Monsanto's herbicide Roundup.
Kremer say Monsanto's "Roundup Ready (RR) plants sprayed with the Roundup herbicide (glyphosate) appear----on the surface---to be impervious to the pesticide. But Kremer say ravaged roots below ground tell a different story. Glyphosate apparently affects root growth and necessary microbes. Kremer's colleagues report that glyphosate exudes from roots into soil, where it persits and accumulates. It's toxic to soil organisms facilitating absorption of nutrients, and it's not biodegradable. It accumulates in roots, stems and seeds---parts that animals and people eat.
Research shows about 3/4 of applied glophosate stays in a plant and about 1/4 of it is exuded over time. There's an accumulation every time glyphosate is applied.
Reuters news service quotes Kremer as saying, "This could be something big. We might be setting up a huge problem" Kremer expressed alarm that federal regulators are not paying enough attention to the risks of GE technology on farms. He says, "Science is not being considered in policy setting and deregulation."
The first RR seed, soy, hit the market in 1998. At the time, the tolerance for Roundup residues was three parts per million. After RR seeds were introduced, residues reportedly increased up to 20 ppm, indicating farmers used Round-up more liberally since it didn't hurt their GE crops.
Instead of holding the line on residues, the Environmental Protection Agency raised the tolerance to 20 ppm---after Monsanto asked for the increase.
This is why GMO foods will contain higher concentrations of chemicals."
by Trudy Bialic
PCC Sound Consumer, June, 2010
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