Aster Yellows - Black Eyes Susan - Ask Extension
Hello! I’ve had a few coneflower plants that definitely had aster yellows, as well as one cosmo. I’ve gone ahead and removed those, and I am now m...
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Aster Yellows - Black Eyes Susan #879294
Asked July 29, 2024, 4:17 PM EDT
Hello! I’ve had a few coneflower plants that definitely had aster yellows, as well as one cosmo. I’ve gone ahead and removed those, and I am now monitoring other plants that could be impacted.
Saw this small green growth on a black eyed susan, and I’m wondering if we should wait and continue to observe or go ahead and pull it?
Ramsey County Minnesota
Expert Response
Hi Allison,
It does look like that might be the case for this flower. Maybe wait a little bit just to be sure.
https://extension.umd.edu/resource/aster-yellows-disease-flowers/
Sally Granath
St. Louis County MG
