What do you use on powdery mildew? Our little dogwoods suffer with it every darn year. Neem? Horticultural oil? Any homegrown remedies? Thanks, Sheila
powdery mildew remedies
Has anyone heard of using a "tea" made with rhubarb leaves as a preventive tip? I read this recently and wondered if it would work on my roses.
I sprayed physan at the beginning of the season and I will spray again after we get a really good rain. I have a big problem with it in my shady area. It seems to really like my illicium and citrus.