Formerly known as Geneva® 11
G.11 shows very good precocity with higher yield efficiency than many commercial rootstocks including some M-9s. Varieties on G.11 rootstock show comparable tree vigor as the same varieties would on M-9 rootstock. G.11 is moderately resistant to fire blight, infections are very rare. The G.11 rootstock show to be moderately resistant to Woolly Apple Aphid, but more testing is needed.