A machine (101) for pulling off plant branches (64, 65； 233), in particular vine branches, of tying wires (58-62) to which they cling by tendrils comprising a combination of means capable to extract the branches (64, 65； 233) downwards. Preferably, the combination of means comprises a (resiliently pivoted) pressing member (119) and a pulling member (139) facing the pressing member (119). In operation, the pulling member (139) is moving so that its surface oriented towards the pressing member (119) moves downwards. Cut-off branches (64, 65； 233) are pressed on this surface by the pressing member (119) by a force sufficient that the branches (64, 65； 233) are dragged downwardly along and are forcibly detached from the tying wires (58-62) thereby. The downward removal corresponds to the about V-shaped ramifications of the plant, so that it is effected more easily and without obstruction by the ramifications which tend to get caught by the tying wires (58-62) when removal occurs upwards. Furthermore, a branch not cut-off (66； 235) and tied to the trellis wire (58-62) withstands the pressing member provided a suitable adjusted resilient pressing force is selected, supported by the pressing member consisting of a resilient material like an elastomer. In consequence, such a branch (66, 235) will not suffer any contact, or at least a minimal contact only, with the pulling device.La présente invention concerne une machine (101) d'arrachage de branches de plante (64, 65 ； 233), en particulier de rameaux de vigne, de fils d'attache (58-62) auxquels ils adhèrent par des vrilles comprenant une combinaison de moyens capables d'extraire les rameaux (64, 65 ； 233) vers le bas. La combinaison de moyens comprend de préférence un élément de pression (qui pivote de manière élastique) (119) et un élément de traction (139) faisant face à élément de pression (119). Lors du fonctionnement, l'élément de traction (139) se déplace de sorte que sa surface orientée vers l'élément de pression (1
