That's the spirit, Porkpal! Almost every rose in my garden suffers from black spot after our rainy season in spring. Some of Ralph Moore's roses and Ping Lim's roses are immune and never exhibit any black spot. In spite of this, the immune roses are virtually indistinguishable from the susceptible roses at any other time of the year.
Black spot does not weaken my roses. The roses that suffer from black spot lose many leaves, if not all of their leaves in severe outbreaks, but the new growth following the outbreak is always pristine and perfect. The roses susceptible to black spot are just as healthy and vigorous as the immune ones, they produce just as many blooms, and they live just as long, so I've never felt the need to use chemical or organic remedies or to take any other extra measures. There is an aesthetic consideration, to be sure, but my only concern is the quality of the blooms, and black spot never affects the blooms.
