Aster Yellows vs. Eriophyid Mites on Coneflower

We’ve been getting a few calls lately from northern gardeners wondering if their coneflowers have aster yellows. That’s one option—the other is an Eriophyid mite infestation. Here’s what you need to know about these two plant problems. Aster Yellows This disease is fairly common and can occur on many plants, including tomatoes, marigolds, snapdragons, even…

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