Abstract: A shaker head for a harvester of plant produce comprises jaws 1, 2 pivotally connected together at 3 and having resilient clamp pads 6 adjacent the free ends thereof. A shaking mechanism is housed in a space in one or both jaws behind clamp pad 6. Jaws 1, 2 are operable by ram 4, 5 to grip part of a plant and, on actuation of the shaking mechanism, to shake it to jar produce therefrom. Each clamp pad 6 is provided with a plurality of bores, each bore extending from a mouth in the gripping surface of pad 6 for more than half the thickness of the pad.