A comb harrow provided with at least one frame arranged so as to be coupled to an agricultural vehicle and supporting a plurality of baskets each comprising two spars extending parallel to the sagittal plane P of said frame and under the latter, and a plurality of bars (11, 11') parallel to each other, arranged under said spars, pivotably mounted on these about an axis A perpendicular to said sagittal plane P and connected to each other by a rail, each bar (11, 11') receiving a plurality of scratching teeth each being pivotably mounted on said bar (11, 11') about an axis perpendicular to said sagittal plane P between a working position and a stowage position and vice versa, each scratching tooth is associated at a pulling point with a tension spring tending to bring it into its working position, said comb harrow being characterized in that it includes at least: - a pressure setting actuator allowing modifying the tension of the tension springs of the scratching teeth of at least one basket, - an aggressiveness setting actuator arranged between the frame and the upper end of an arm pivotably mounted at its lower end on said frame about an axis B perpendicular to said sagittal plane P and receiving between its lower and upper ends a rod extending perpendicularly to said sagittal plane P and connected to the front bar of at least one basket by an assembly of connecting rods/lever generally shaped as a deformable Z including at least one lever extending perpendicularly and on either side of the rod, a first connecting rod pivotably mounted at its upper end on the lower end of said lever, and a second connecting rod pivotably mounted at its upper end on the lower end of said first connecting rod about an axis C perpendicular to said sagittal plane P and at its lower end on said front bar so that the movement of said rod causes pivoting of said front bar, and - a stowage actuator arranged between the upper end of the lever and the first connecting rod to make the scratching teeth of a basket switch from their working position into their stowage position, and vice versa, and in that the pulling point of each scratching tooth is positioned on the pivot axis A of the associated bar (11, 11'), and in that said pivot axis C of the second connecting rod and said pivot axis B of the arm 20 are coaxial, when the scratching teeth of the associated basket are in the stowage position. said comb harrow being characterized in that it includes at least: - a pressure setting actuator allowing modifying the tension of the tension springs of the scratching teeth of at least one basket, - an aggressiveness setting actuator arranged between the frame and the upper end of an arm pivotably mounted at its lower end on said frame about an axis B perpendicular to said sagittal plane P and receiving between its lower and upper ends a rod extending perpendicularly to said sagittal plane P and connected to the front bar of at least one basket by an assembly of connecting rods/lever generally shaped as a deformable Z including at least one lever extending perpendicularly and on either side of the rod, a first connecting rod pivotably mounted at its upper end on the lower end of said lever, and a second connecting rod pivotably mounted at its upper end on the lower end of said first connecting rod about an axis C perpendicular to said sagittal plane P and at its lower end on said front bar so that the movement of said rod causes pivoting of said front bar, and - a stowage actuator arranged between the upper end of the lever and the first connecting rod to make the scratching teeth of a basket switch from their working position into their stowage position, and vice versa, and - a pressure setting actuator allowing modifying the tension of the tension springs of the scratching teeth of at least one basket, - an aggressiveness setting actuator arranged between the frame and the upper end of an arm pivotably mounted at its lower end on said frame about an axis B perpendicular to said sagittal plane P and receiving between its lower and upper ends a rod extending perpendicularly to said sagittal plane P and connected to the front bar of at least one basket by an assembly of connecting rods/lever generally shaped as a deformable Z including at least one lever extending perpendicularly and on either side of the rod, a first connecting rod pivotably mounted at its upper end on the lower end of said lever, and a second connecting rod pivotably mounted at its upper end on the lower end of said first connecting rod about an axis C perpendicular to said sagittal plane P and at its lower end on said front bar so that the movement of said rod causes pivoting of said front bar, and - a stowage actuator arranged between the upper end of the lever and the first connecting rod to make the scratching teeth of a basket switch from their working position into their stowage position, and vice versa, and in that the pulling point of each scratching tooth is positioned on the pivot axis A of the associated bar (11, 11'), and in that said pivot axis C of the second connecting rod and said pivot axis B of the arm 20 are coaxial, when the scratching teeth of the associated basket are in the stowage position.