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LEAF SPOTTING AND CURLING (Occurs frequently) Brown necrotic spots occurring on leaves of lower branches, and curling of the leaf margins. Photo by Chad J. Behrendt |
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LEAF BLISTERS (Occurs occasionally) Swollen areas on leaves which appear blistered (curled and puckered). Photo by Chad Behrendt |
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WHITE POWDERY GROWTH (Occurs occasionally) White to gray powdery growth on the leaf surface. Photo by Clemson University |
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WILTING/DROUGHT-LIKE SYMPTOMS (Occurs frequently) Wilting or browning of leaves on individual branches in the upper canopy. Photo by Department of Plant Pathology |
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OTHER CAUSES Other symptoms caused by chemical, animal, or environmental factors. Photo by Chad Behrendt |