Show apple scab Is serious on certain varieties like all fungous diseases discuses apple scab Is more serious op on some varieties varied than upon athe others is all varlet varieties les ofaf ples however are subject to the disease and way may iii he damaged material lv certain varieties however are notorious for their susceptibility and these should be grown rown by the growers as it Is necessary t give such sorts more particular attention as regards to spraying alinn the more or less resistant varieties moreover there are unaccountable variations or differences in the susceptibility of different t viii varieties 1016 of apples in different parts part s of the bou country |