I agree with Zoe. Overall healthy, possibly grasshoppers, or something eating the leaves. The pedals will brown as they age. I also cannot tell if those gray areas are a leaf spot or something that munches on the layers of leaves.
A lot of things eat coneflowers. They attract a lot of pollinators too. Personally I would lay off the spray. I don't think it's helping you anyway. Just expect some imperfections on coneflowers.
