Peony Disease - Knowledgebase Question

Kewaunee, WI
Avatar for mgrank
Question by mgrank
March 17, 1998
My peony bushes have a tendency to have parts of the
plant turn black. On the smaller plants, the darkened
part of the bush easily pulls out of the ground. What
should be done?

Answer from NGA
March 17, 1998
The symptoms sound like a fungal disease. If the shoots suddenly wilt and fall over, and show signs of black tissue, its probably Sclerotinia. The fungus overwinters in the soil and attacks plant parts as they emerge. It would be best to remove and destroy the affected plants and put new peonies in a different location.

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