How to get powdery milder off vines, peonies, clemaits and dogwood?
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Lut26457422
In WNY how do u treat powdery mildew effecting trumpet vine, clematis, Peonie and maybe dogwood tree ?
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powdery mildew is a fungus caused from to much water. Use a fungicide as needed for all.Cut back on the watering
Cooper sulfate fungicide is used even in organic gardening, so thats the one I would select. Here is a good article with safety precautions.... http://www.bigblogofgardening.com/bordeaux-mixture-and-copper-are-best-organic-fungicides/