No one is 100 percent sure, but pigweed may have gotten its name because it was once used as food for pigs. In some places, this weed—also known as amaranth—has served as an important source of ...

Driving through Fond du Lac and Dodge counties, it is obvious that many soybean fields have weed escapes, many of which are in the pigweed family. Wisconsin has several upright pigweeds that are ...

ST. PAUL -- Waterhemp is an annual weed species in the pigweed family that is capable of producing more than 1 million seeds per plant. Due to a limited number of effective herbicides, especially in ...