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Powdery Mildew and Whiteflies on Marigolds: Copper Fungicide + Insecticide

White powder on marigolds/salvia + flying white bugs = powdery mildew + whiteflies. Mildew weakens plants, inviting whiteflies. Treat with copper fungicide (Soap Shield works) early summer for prevention. Once infected, hard to cure. Combo products (insecticide + fungicide) for fruit trees work on flowers. Act fast.

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