I first spotted the beginnings of powdery mildew on my fall zucchini a couple days ago. I knew I should have pulled the leaves but in the back of my head, I was hoping that the little bit that was there would not spread to other leaves. (Beginner's mistake.) I took a quick gander at them again today and it does appear to be spreading. I guess I'll have to remove the leaves now and hope for the best. Maybe I'll run out and get some copper spray. If anyone has any other suggestions, please let me know.
My 4 zucchini plants started flowering a couple of weeks ago. I still haven't gotten a female flower yet. If I don't get at least one zucchini out of this, I will be bitterly disappointed.