Abstract: A cultivator having a rigid frame adapted to be connected to a tractor, at least one pair of laterally spaced-apart plow elements for breaking up the surface of the ground independently connected to the frame by a pair of linkages, and a pair of laterally spaced-apart rolling disk shield assemblies suspended from the lost motion linkages. The disk shield assemblies are comprised of first and second supporting arms rigidly connected respectively to the lost motion linkages and which extend outwardly away from the plow elements, a lever rotatably connected to and depending from each of the supporting arms, and a disk shield rotatably mounted on each of the levers and positioned generally between and adjacent the plow elements.