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laceyvail

Rust on Black Cohosh

laceyvail 6A, WV
16 years ago

I have the native Cimicifuga (called Black Cohosh locally) and though the plants are huge and still healthy looking, a bright orange rust is appearing on the underside of the leaves, but showing orange on the top. I began removing the leaves when I noticed it yesterday, but there are too many affected.

Does anyone know anything about this? I also occasionally get rust on Jack in the Pulpits--I have a lot scattered around in my shade garden, but I beleve that rust is specific to Jacks. I do remove those plants.

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