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These impatiens are just starting to yellow and
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These impatiens are just starting to yellow and curl their leaves downward. There is formation of downy mildew spores on the undersides of the leaves.(Credit: Cornell University / M. Daughtrey)

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Downy mildew impacts impatiens

Downy mildew is a ravenous disease that has affected local basil the past few years and this summer moved on to impatiens with a vengeance.