Technique used for various purposes such as the propagation of Bartlett pears on quince as a dwarfing rootstock by using a compatible interstock such as Old Home or Hardy pear, and the propagation of dwarfed apple trees consisting of the scion cultivar grafted onto a dwarfing M9 or M27 interstock that is grafted onto a more vigorous rootstock such as MM106, M111 or apple seedlings. A double-worked plant has three part, all different genetically: the rootstock, the interstock, and the scion.