To provide a weed control apparatus which selectively removes weeds by a sieving operation at the same time as a tilling operation and drops the haze which passed through the sieve onto the ground, A weed control device is provided.SOLUTION: Rotor 7 having a plurality of pieces of soil scraps 6 is rotated to immediately raise weeds together with soil while running while throwing the rear of the weeds, receiving the thrown soil and weeds and screening Weed removal device comprising a screening device 8 for carrying out work, comprising an impact means by reciprocating movement in the traveling direction of the sieves, separating the soil finely and separating the soil and the weeds, passing through the sieve, To fall to the ground. It is preferable to provide a protrusion at a position in contact with the bottom of the sieve in the middle of the reciprocating movement and lifts the sieve and drop it down repeatedly to apply impact in the vertical direction.(Fig.【課題】耕起作業と同時に篩作業により雑草を選別して取り除くと共に篩目を通過した砕土を地面に落下させる雑草除去装置に関し、雑草が繁茂する畑における畑作を行うのに特に好適な自走式雑草除去装置を提供する。【解決手段】複数枚の土掻片6を有するローター7を回転することで走行しながら土とともに雑草を掻上げ後方に投てきする耕起部の直後に、投てきされた土及び雑草を受けて篩作業をする篩具8を備える雑草除去装置であって、篩具を走行方向に往復運動による衝撃手段を備えて土をより細かく解すとともに土と雑草とを分離し篩目を通過して砕土のみを地面に落下させる。往復運動による衝撃手段としては、往復運動の途中における篩具の底部と接する位置に突起を設け、篩具を持ち上げ落下する動作を繰り返し上下方向の衝撃を加えるのが好ましい。【選択図】図9
