Crimson Cascade was Downy mildew MR and Rose midge Resistant Per Elmhirst, J. F. 2004. Rose, Salix and Acer midge trials in British Columbia. CNLA IPM Research Project # 2004-05. Final Report: Dec. 31, 2004
Almost completely defoliated by blackspot after a long period of heat and draught, followed by a very wet and cool summer. Didn't repeat well this "summer"! Got black flowerpetals in spring as a result of the heat and sunburn.