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SPOTS WITH YELLOW HALOS AND GRAY CENTERS (Occurs frequently) Round leaf spots with gray centers and dark borders. Photo by Plant Disease Clinic |
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LARGE GRAY BLOTCHES (Occurs in cool, wet weather) Large, gray, greasy blotches eventually cause the entire leaf to shrivel. Stems and fruit may be affected. Photo by Plant Disease Clinic |
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CONCENTRIC RING SPOTS (Occurs frequently) Dark colored, circular leaf spots made up of concentric rings. Photo by Plant Disease Clinic |
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GRAY-BROWN SPOTS (Occurs occasionally) Small, dark brown spot enlarge to a grayish brown. Photo by Plant Disease Clinic |
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GRAY-BROWN MOLDY GROWTH (Occurs occasionally) Grayish-brown moldy growth appears over leaf, stem and fruit. Photo by Plant Disease Clinic |
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SMALL, DARK SPOTS (Occurs occasionally) Small, brown to black spots on leaves. Photo by Plant Disease Clinic |
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LIGHT GREEN OR YELLOW LESIONS (Occurs occasionally) Light green to yellow spots develop on upper sides of leaves. White powdery coverings sometimes develop on the undersides of leaves. Photo by Plant Disease Clinic |
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YELLOW & GREEN MOTTLED LEAVES; RINGSPOTS (Occurs occasionally) Yellow & green mosaic patterns on the leaves. Leaves may be stunted, curled, or distorted. Photo by Plant Disease Clinic |
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OTHER CAUSES Other symptoms caused by chemical, animal, or environmental factors. Photo by Chad J. Behrendt |
