Poplar, Eastern
Symptom Cause  
Galls on leaf stems; end buds distorted
Aphids
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Many holes in branches; limbs girdled sawdust at holes
Borers
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Leaves eaten; trees defoliated
Caterpillars
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Young portions of foliage disappear, or young tips disappear, bark peeled off
Deer
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Leaf tissue eaten between veins, circular holes; foliage turn brown, dry; twigs die
Imported Willow Leaf Beetle
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Leaves blistered and curled up
Leaf Blister (fungus)
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Brown spotted leaves; fall prematurely
Leaf Spot
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Twigs break off
Poplar Curculio
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White mildew coating both sides leaves
Powdery Mildew
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Leaves; branches encrusted with small bumps
Scale Insects
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Black powdery sooty mold fungus forms on honeydew; branches may die
Sooty Mold
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