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IRREGULAR SHAPED BROWN LEAF SPOTS (Occurs frequently) Light tan to dark brown leaf spots that vary in size and shape. Photo by Department of Plant Pathology |
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RAISED BLACK LEAF SPOTS (Occurs frequently) Black raised spots on leaves that resemble puddles of tar. Photo by Department of Plant Pathology |
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SMALL ROUND SPOTS WITH DARKER MARGINS (Occurs frequently) Tan to dark brown leaf spots with dark colored margins. Photo by Department of Plant Pathology |
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WILTING/DROUGHT-LIKE SYMPTOMS (Occurs occasionally) Wilting or browning of leaves on individual branches in the canopy. Photo by Department of Plant Pathology |
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OTHER CAUSES Other symptoms caused by chemical, animal, or environmental factors. Photo by Robert Blanchette |