mold on zuchinni - Knowledgebase Question

oakwood, Ge
Question by atlcha
July 15, 2009
How can I kill mold growing on the leaves of my zuchinni squash?


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Answer from NGA
July 15, 2009

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The leaf mold is called powdery mildew. There are a number of options for powdery mildew control on squash. Among your least toxic options are products that contain either of the following ingredients: neem oil or potassium bicarbonate. Potassium bicarbonate is similar to baking soda. Read the label for application instructions and frequency. As a general rule, these sprays generally need to be applied on a 10-14 day basis when conditions favor powdery mildew development. Your County Extension Office can offer other options for powdery mildew control.

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