Farmers are told by the Wisconsin Department of Agriculture to be on the lookout for a weed called Palmer Amaranth. The weed is prohibited in seed mixes but has still found its way from its native land in the southwestern part of the United States. Palmer Amaranth can out compete other native plants and if it gets into corn and soybeans can cause yield loses as high as 90 percent. These plants can grow up to 2-3 inches a day and grow as tall as 6-8 feet. Farmers are advised to buy local seed mixes and be aware what the plant looks like.