Viburnum: Koreanspice
Symptom Cause  
Sunken spots on leaves
Anthracnose Spot
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Leaves curled/discolored; honeydew on undersides of leaves, sooty mold forms
Aphids
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Foliage and flowers skeletonized
Asiatic Garden Beetle
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Buds and flowers spotted; leaves blotched
Blight (fungus)
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Tumor-like swellings on stems
Crown Gall
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Lower foliage looks burned
Dog Urine
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Bark of trunk and roots gnawed
Mice
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Plant stunted; leaves yellowed; root lesions
Nematodes
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Leaves covered with white powder
Powdery Mildew
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Bark of trunk and roots gnawed
Rabbits
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Brownish-orange spots on foliage; stems
Rust (on plants)
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Leaves/branches encrusted with small bumps
Scale Insects
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Black powdery sooty mold fungus forms on honeydew
Sooty Mold
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Leaves discolored; black fecal spots on underside of leaf
Thrips
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Branch dieback, general plant decline. Branches swollen with cracks and emergence holes at base of plant
Viburnum Borers
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Bark of trunk and roots gnawed
Voles
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