I have had no trouble with excessive PM on this rose. Both are in shady areas--one in denser shade. I just hit it with a fungicide if I have a little left over in my sprayer afte spraying my other roses. After it blooms, I cut out all canes except for the new ones. Maybe that extra air somehow takes care of the PM. Since it only blooms once, I keep threatening to get rid of it. However, it is gorgeous when it blooms so I just keep it.