PROBLEM TO BE SOLVED: To provide a wheel trace erasing device that can adjust a leveling plate at a proper vertical position while maintaining a basic attitude of the leveling plate, even if an exclusive vertical position adjustment mechanism is not provided.SOLUTION: A planting machine 3 of a riding rice transplanting machine 1 includes a wheel trace erasing device 20 for erasing a wheel trace of a traveling machine body 2. The wheel trace erasing device 20 includes a leveling plate 24 for erasing the wheel trace, a supporting bracket 25 for supporting the leveling plate 24, a parallel linkage mechanism 26 for supporting the supporting bracket 25 in a vertically swinging manner and changing the vertical position of the leveling plate 24 according to the turning operation of a float connecting shaft 22 by a planting depth adjustment lever 17, and a pressing force adjustment mechanism 30 for adjusting the pressing force of the leveling plate 24 to a paddy field.SELECTED DRAWING: Figure 8
