Several common weeds within Wisconsin have the potential to develop glyphosateresistance based on their evolution of glyphosate-resistance or reduced sensitivity in other Midwestern states. These weeds include horseweed, common lambsquarters, waterhemp, common ragweed, and giant ragweed, but other weeds also have the potential for developing resistance. Some of these weeds also pose problems in obtaining consistent control even without any type of herbicide resistance and are considered “problem weeds”.