Answer: Powdery mildew thrives when nights are cool and damp so increasing air circulation in your garden will help prevent the problem. You can also pick off infected leaves as soon as you notice there's a problem.
Two varieties you might consider growing are Spacemiser and Tipo. Both were developed for short-growing season areas, so they require less heat than other summer squashes, and they ripen in only 55 days. Spacemiser is a compact growing plant, and Tipo comes from Switzerland, where the season is really short.
Seeds are available from Territorial Seeds, PO Box 157, Cottage Grove, OR 97424-0061.
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