Echinacea disease/pest

Hi I have this Full sun echinacea about 3/4 feet tall and has been in this spot for about 3/4 years. Toronto north York. This year, it’s the biggest and fullest but either has asters yellow or mites of some…

What’s “Bugging” my Coneflower?

I believe I’m in zone 6 or 6a. I’m at spadina and st Clair in Toronto. The garden faces north and gets sun from ?? To ?? Clay soil that I had compost added at least once every spring and…