Lawsuits have been filed on the issue. In August, three environmental groups filed in West Virginia seeking to have the U.S. Fish and Wildlife Service halt the planting of genetically-modified crops on 44,000 acres of federal land in the South. The Center for Food Safety, Public Employees for Environmental Responsibility and Beyond Pesticides pursued two similar lawsuits in Delaware, which resulted in the agency ending the practice in its 12-state northeast region.
The groups maintain that the use of genetically-engineered crops such as those modified to resist the herbicide glyphosate — marketed by Monsanto as RoundUp — promotes growth of different feeds that wildlife would not normally be eating. In 2010, a California judge ruled that GMO beet seeds developed by Monsanto would not be able to be planted until the U.S. Department of Agriculture reviewed the effect those crops could have on other food.