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Seed Starting Project: Powdery Mildew

Cucumbers are still producing but they’ve developed powdery mildew on their leaves. Best guess is that the leaves have been too wet too often this summer which can be a problem especially at night. The Library has a sprinkler system that is set to go on every night and the cucumbers are fairly close to one of the sprinkler heads. This,  plus cooler temperatures in general,  plus the heavy rains we have experienced lately have all been contributing factors. photo (57)

By julie collins on August 8, 2014 Categories: Gardening, Seed Starting Project

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