The device (1) has a header (3) that is arranged on a self-propelled harvester (2) or a self-propelled forage harvester. A detection unit (4) is arranged for detecting and guiding of corn stalks, and a set of drive wheels (7) is arranged on the harvester. A set of shredders (11, 12) is provided in a spaced apart manner, where the shredders are provided in a direction of travel of the harvester before the drive wheels, where a respective working width of the shredders corresponds to a width of the subsequent drive wheels.
