Knowledgebase
Aster Yellows #867839
Asked May 10, 2024, 7:49 AM EDT
Le Sueur County Minnesota
Expert Response
https://extension.umn.edu/plant-diseases/aster-yellows
Also interesting dandelion information.
https://hort.extension.wisc.edu/articles/dandelion-taraxacum-officinale/
As to what is affecting dandelions in the Twin Cities, I was unable to find any research web sites on dandelion diseases.