Harvester with selective force balanced shaking mechanism

A multi-purpose harvester for plants such as grapes or the like is disclosed and utilizes front and rear force balanced shaker units for minimizing the weight and expense of the harvester. Depending upon the type and varieties of crops being harvested, the harvester may be easily modified to operate as a foliage shaker alone with the front and rear shakers being driven either by a single motor or by separate motors; or the harvester may be easily modified to operate as a combination foliage and trunk shaker which is powered by a single motor or by front and rear motors selectively driven at speeds found to be most effective to dislodge the crop from the plants.