News
2013-06-11 | permalink
Five of 13 major pests became resistant to Bt crops until 2011
More pest species are becoming resistant to the most popular type of genetically-modified, insect-repellent crops, but not in areas where farmers follow expert advice, a study said on Monday. [...] Of 13 major pest species examined, five were resistant by 2011, compared with only one in 2005, they found. The benchmark was resistance among more than 50 percent of insects in a location. Of the five species, three were cotton pests and two were corn pests. Three of the five cases of resistance were in the United States, which accounts for roughly half of Bt crop plantings, while the others were in South Africa and India.
Yahoo News!, UK: More pests ‘resistant to GM crops’: study
