Coneflower problem:leaves browning

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Atwoodshole Charlottesville, VA(Zone 7b) Jun 27, 2014

Something is damaging my coneflower. Leaves are browning and there are black dots on the back side. Live in central Virginia.

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Sequoiadendron4 Lititz, PA(Zone 6b) Jun 27, 2014

I'm fairly certain that is a fungal infection. You should treat with a fungicide like Daconil. As a precaution, I would also make sure that whenever you water to water the base of the plant and not from the top so the water doesn't lay on the leaves.

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