The choice of rootstock can have a major influence on the –production and profitability of a new apple orchard, yet little information is available to help growers choose between the various dwarfing rootstocks, says Tom Auvil, research –horticulturist with the Washington Tree Fruit Research –Commission. Auvil said some nursery catalogues group all the Malling 9 clones together with Budagovsky 9 in the smallest rootstock category, and many classify M.26 as a larger rootstock. Replant disease, which can occur when any tree fruits are planted on old orchard ground, reduces tree growth even when the ground is fumigated. Trees on Malling […]