Phlox, Garden
Symptom Cause  
Leaves wrinkled or curled; discolored, stunted, tend to fall off
Aphids
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Flowers discolored; growth stunted, Leafhoppers present
Aster Yellows
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Water-soaked spots on leaves
Blight (bacterial)
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Crowns and roots rot; odor present
Crown Rot
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Foliage looks burned
Dog Urine
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Dead or rotted plants
Environmental Problems
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Leaves discolored and distorted
Leafhoppers
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Plant stunted; leaves yellowed; root lesions
Nematodes
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Plants die back in summer
Normal
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Flowers deformed
Plant Bugs
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Leaves covered with white powder
Powdery Mildew
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Black powdery sooty mold fungus forms on honeydew;
Sooty Mold
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Leaves stippled, yellow, dirty; webbing on interior stems of plant
Spider Mites
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Deformed or dwarfed flowers
Tarnish Plant Bugs
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