Knowledgebase
Aster yellows or mite damage on echinacea #877703
Asked July 17, 2024, 6:08 PM EDT
Washington County Minnesota
Expert Response
Hi Emily,
I would suspect this is mites, but this page will help you decide.
https://bygl.osu.edu/node/1845
If it is mites, cut off and bag the affected flower heads and put them in the garbage. If you think it's aster yellows, the entire plant should be removed.
Good luck.