Third-leaf Fuji on Malling 9 rootstock in unfumigated groundat Brewster, Washington. (Courtesy Tom Auvil) The following observations regarding replant-tolerant Geneva rootstocks have been made as a result of trials in Washington: • The high yields from these rootstocks can cause the scion to slide off the rootstock, especially when the trellis fails. Trellis engineering should consider 100 bins per acre as the typical load for vertical trellis. Limbs should be attached to wire with five wraps of electrical tape to prevent trunks from sliding down the trellis or twisting in high winds. Post intervals down the row should be less than […]