Tuesday, July 26, 2005

GM crops created superweed, say scientists

This news is very serious for two reasons. First, scientists promoting genetically modified crops were sure it couldn't happen. "Jurassic Park" had it right -- "life will find a way." What else might happen despite assurances? Secondly, these superweeds will cause tremendous damage if they multiply -- for conventional and organic growers. This story details instances in Canada and elswhere where superweeds are a real problem. In some of these instances, it's not even genetic modification causing the problem -- it's just the selection pressure from repeatedly using powerful chemical pesticides.
Guardian Unlimited | GM crops created superweed, say scientists:
Paul Brown, environment correspondent -- The Guardian -- July 25, 2005
Modified rape crosses with wild plant to create tough pesticide-resistant strain
Modified genes from crops in a GM crop trial have transferred into local wild plants, creating a form of herbicide-resistant 'superweed', the Guardian can reveal.
The cross-fertilisation between GM oilseed rape, a brassica, and a distantly related plant, charlock, had been discounted as virtually impossible by scientists with the environment department. It was found during a follow up to the government's three-year trials of GM crops which ended two years ago.
The new form of charlock was growing among many others in a field which had been used to grow GM rape. When scientists treated it with lethal herbicide it showed no ill-effects.

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