Dogwood, Kousa
Symptom Cause  
Irregular tan or brown spots on leaves at veins; expand until leaves die; sometimes sunken spots on leaves
Anthracnose (on plants)
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Many holes in trunk and branches; small limbs girdled sawdust at holes
Borers
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Leaves stunted; swellings on trunk/roots
Canker (fungus)
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Young portions of foliage disappear, young tips disappear, bark peeled off
Deer
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Leaves; growing tips shrivel
Dieback (fungus)
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Bark of tree, stems; roots gnawed on
Rodent Injury
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Slow growth; pale foliage
Root Competition
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Leaves and branches encrusted with small bumps; stunted plant growth
Scale
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No blossoms
Young, over fertilized/pruned
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