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Last year a well-established clump of Praying Hands Hosta began turning yellow, then brown and dying off. The leaves were mushy at the base. I did not have any testing done, but treated with a fungicide after cutting the hosta back at the soil.
I sterilized my tools and left it alone. This spring the hosta came back so I thought my actions worked until we hit these high temps in northern Illinois. The yellow/brown, mushy stems are back.
If this is Sclerotium or any other difficult fungus/disease, I will dig the hosta and throw it away. That said, do I need to solarize the soil? Or perhaps just find a different plant not affected by this problem? I clearly did not fix the problem with my fungicide last year.
thank you,
C.G.
