Rotary cutter with teeth round can be fitted on motobineuse for working the soil, in particular truffle. The device makes it possible to loosen the ground by a passage to be better controlled around the trees as soon as the plantation and for the production. The apparatus is constituted of two elements of the tool (1). Each cutter is formed of three stars (5). Each of the star is composed of four points (2) are welded on a plate (3) which is fixed on the central axis. This device makes it possible to ventilate the ground over a width of the four twenty centimeters and a depth between eight to twelve centimeters. The device according to the invention is particularly intended for working the soil truffle.
