Fuente: WIPO "tomato" In the field of removing a plant portion (1, 4) from a greenhouse plant, a method is provided which comprises the use of a device (100) with a detection system (20) and a gripper (10). The detection system (20) is used to capture an image of a portion of the greenhouse plant and to detect at least a plant portion (1, 4) to be removed and a course of a main branch on which the plant portion (1, 4) is situated in the image. Subsequently, the gripper (10) is controlled in order to engage with a detected plant portion (1, 4) to be removed at the location of a connecting region with which the plant portion (1, 4) is joined to the main branch (3), wherein the gripper (10) is first positioned near the plant portion (1, 4) and is subsequently moved along the plant portion (1, 4) in the direction of the connecting region of the plant portion (1, 4).