Toni: For lack of a better way to describe it, Powdery Mildew looks like white powder on the foliage and flower buds on roses...like someone "dusted" those parts with an ultra fine "powder". It will rub off on your fingers if you "rub" the buds or the folaige.
Today I spent the entire day removing rose foliage that looks like lace-work from those blasted sawfly larvae. Why I'm getting it NOW is a complete mystery. Luckily, my roses recover quickly from it, so I'll still get another flush or two before January. It's almost as if it (the damage) happens overnight. The weirdest thing is that I don't even SEE the larvae nor what they morph in to.