My fiancee has a miniature rose she was given as a gift, which we keep indoors as we live in an apartment. After recovering from being left in an abandoned office for a week or so, it's been thriving - survived a summer, this last winter, and into this summer.
This summer however, it got hit with a very bad case of powdery mildew, and by the time we managed to get something to treat it, it's sustained some pretty bad damage. Essentially all its leaves are curled and brittle, and it looks "dead" - or close to it.
Is there something that can be done to salvage it? Is there a place to cut to essentially encourage new growth and starting over? Or is it on its way out?