My Coreopsis auriculata has a problem

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kbaumle Northwest, OH(Zone 5b) Oct 06, 2005

Are these susceptible to powdery mildew, because that's kind of what this looks like. :-(

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sugarweed Taylor Creek, FL(Zone 10a) Oct 06, 2005

Spray with baking soda/water. I also use fresh warm dishwater.
Sidney

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kbaumle Northwest, OH(Zone 5b) Oct 06, 2005

Do you think that powdery mildew is what is the problem? Is this common with this variety of coreopsis?

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thripmaster Monroe, NC(Zone 7b) Oct 06, 2005

The photo sort of looks like PM...but I have never gotten it on my Coreopsis. As a matter of fact, I really like Coreopsis becauses it is so pest free! This is a mystery.

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