Where do you live? http://xxxnx.world xlxxx The amount of GMO contamination that might be present inconventional alfalfa is not known. But a December 2011 report byStephanie Greene, a geneticist with the USDA AgriculturalResearch Service, ARS, said that after Roundup Ready alfalfa wasfirst deregulated in 2005 industry testing of conventional seedlots found levels of contamination as high as 2 percent.