I've searched the forum and found all the fungicide links, I think. But I still have two questions. I'm using the Schultz product and I'm being proactive with Duchess of Albany since she got mildew at the end of the summer last year. My first question is: how often do I apply this? Weekly, biweekly? And when do I stop?
Also I've added some small species clematises this year. I know viorna is mildew prone, but am not sure about the others. How about heracleifolia, albicoma and ochroleuca? I assume I shouldn't treat them with a fungicide this year since they were just planted, but I'd like to know which are suspect so I can get right on them next year.