Strange Black-eyed Susans

Asked July 13, 2017, 7:19 AM EDT

I planted new Black-eyed Susans this spring. It has been dry here but they have been watered. Foliage seems ok but flowers seem to have some strange mutation. Is it a bug, fungus, doing this?

Tazewell County Illinois

1 Response

This could likely be caused by Aster yellows which is a virus transferred by a mite and is not correctable. The recommendation is to destroy all infested plants and start over sadly. Below is a link to a document about Aster Yellows from Missouri Botanic Garden.

http://www.missouribotanicalgarden.org/gardens-gardening/your-garden/help-for-the-home-gardener/advi...