The undercutter plow is a farm implement currently used for weed control on many farms in the winter wheat/fallow region of the Great Plains States and the Intermountain West. Undercutters are large (3 to 7 feet wide) V- shaped blades or sweeps that are pulled by tractors through a field 3 to 6 inches under the soil surface. Using an undercutter instead of a disc can control weeds, retain soil moisture, and save many bird nests and flightless birds present in the stubble