Abstract: The present invention is directed to apparatuses, methods, and systems that provide a tracking assembly adapted to be used with a vegetation control system, the assembly comprising: an articulating frame; a pivoting frame coupled to the articulating frame along a pivot axis; a vegetation control application system coupled to the pivoting frame; a first ground tracking device coupled to the articulating frame configured to contact a surface underneath the articulating frame and position the articulating frame relative to the surface underneath the articulating frame; and a second ground tracking device coupled to the pivoting frame configured to contact a surface underneath the pivoting frame and position the pivoting frame and vegetation control application system relative to the surface underneath the pivoting frame, wherein the second ground tracking device pivots the pivoting frame about the pivot axis when an elevation of the surface underneath the second tracking device is different to an elevation of th

Abstract: Apparatus producing superheated water and/or steam for weed (36) killing, etc. has diesel fired boiler (30), which, via pump (32), generates hot water at a pressure of 40-52 bar and temperature of 90-115° C. This passes down tube (12) and encounters the constriction provided by nozzle (14). Passing through nozzle (14) into depressurization chamber (16), which is at atmospheric pressure, the water boils. When the super heated water exits ports (20) of distribution pipe (18) it encounters ambient temperature and is transformed into high temperature water vapor and/or water droplets. The apparatus controls or kill weeds (36) using a smaller volume of water and less energy.