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Black Eyed Susans

Q.Black eyed susans

Zone 08093 | Froggy1217 added on September 18, 2017 | Answered

My black eyed Susan’s flower petals have turned green on some plants. Do I need to fertilize them?

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Answered on September 19, 2017

Your plant appears to be suffering from "aster yellows". It is an infection typically spread by leaf hoppers. If you are within a month of your first frost, I'd cut the plant to the ground and make sure every bit of it is tossed out. It might be a mite, too. Here is comprehensive info: http://www.missouribotanicalgarden.org/gardens-gardening/your-garden/help-for-the-home-gardener/advice-tips-resources/pests-and-problems/diseases/viruses/aster-yellows.aspx

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