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Diagnose By Tree Species
Cottonwood (Populus)
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All Cottonwood (Populus) Pests
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Insect
Disease
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Armillaria Root Rot
(Armillaria spp.)
Botryosphaeria Canker
(Botryosphaeria spp)
Carpenterworm
(Prionoxystus robiniae)
Cottonwood Borer
(Plectrodera scalator)
Cottonwood Leaf Beetle
(Chrysomela scripta)
Cottonwood Twig Borer
(Gypsonoma haimbachiana)
Drought
Frost Crack
Herbicide Damage
Improper Mulching
Improper Planting
Improper Pruning
Leaf Scorch
Leafy Mistletoe
(Phoradendron tomentosum)
Lightning Damage
Mechanical Damage
Nutrient Deficiency
Overwatering
Phytophtora Root Rot
(Phytophtora spp.)
Powdery Mildew
(Oidium sp.)
Soil Compaction
Structural Root Rot
(Ganoderma sp.)
Underwatering