peony has white fungus on leaves

Question

I read your article about how to treat this fungus, but I am wondering if treatment is necessary. Once the plants die for the season, will the fungus also be destroyed? So next spring, would I have a fungus-free plant?

Answer 1

The fungi can actually overwinter on plant debris, so it is best to go ahead and get rid of the fungal disease now to prevent future outbreaks.