![]() ![]() ![]() 11, I was looking through my microscope and there it was … something I’d never seen before. The disease was identified as a type of downy mildew by Pat Nolan, a plant pathologist with the San Diego County Agriculture Department. “No one knew what it was, but it wiped out entire areas of red apple.” “We first saw it during the heavy summer rains (July) and a lot more this winter,” said David Ross, senior manager at Walter Andersen’s Nursery. It is not known when the new disease arrived here, but last summer, gardeners in Poway noticed that their red apple was dying. The attractive and previously carefree ground cover is widely planted throughout Southern California, but its popular appeal could soon decline as the epidemic spreads. A new disease is devastating stands of red apple ice plant, Aptenia cordifolia.
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