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Mary from Kirkland, Washington writes

Is Bayer Advanced Disease Control for Roses, Flowers and Shrubs Concentrate safe to use on Dahlias with powdery mildew?

Answer:

Yes, you can use Bayer Advanced Disease Control for Roses, Flowers & Shrubs Concentrate on dahlias, and the product controls powdery mildew. You should use 3/4 fluid ounces per gallon of water at 7-14 day intervals to treat existing disease or for prevention. Please see the product label for complete application instructions.

Answer last updated on: 08/26/2015

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