Wisconsin farm groups fight EPA on atrazine levels

Some of Wisconsin's largest farm groups are worried federal regulators will expand restrictions on atrazine, a weed killer sprayed on corn fields and other crops.  The U.S. Environmental Protection Agency issued a draft ecological risk assessment of atrazine this summer and recommended reducing the allowable levels.  Farm groups have asked farmers to contact the EPA and urge the agency to reconsider its stance.  Wisconsin Corn Growers Association officials said the reduced allowable levels would effectively ban the use of the weed killer in nearly 100 herbicide mixes.