Black-eyed Susan (Rudbeckia)
Symptom Cause  
Leaves curled and discolored; honeydew evident on undersides of leaves; sooty mold
Aphids
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Crowns and roots rot; odor present
Crown Rot
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Spots- dead or pale blotches on leaves
Fungal Diseases
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Deformed or dwarfed flowers
Plant Bugs
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Leaves covered with white or grayish powder
Powdery Mildew
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Holes in leaves
Sawfly (Larvae)
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Black powdery sooty mold fungus forms honeydew
Sooty Mold
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