Hibiscus
Symptom Cause  
Leaves wrinkled or curled; discolored, stunted, tend to fall off
Aphids
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Leaf spots run together; exudates seen
Bacterial Spot
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Holes in leaves and flowers
Japanese Beetles
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Brownish-orange spots on foliage; stems
Rust (on plants)
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Leaves yellow, drop; bumps on leaves and stems; sometimes sticky leaves
Scale
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Small seedlings everywhere
Self-Seeding
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Weakened plant, leaves yellowed, appears like flying dandruff when foliage disturbed
Whiteflies
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