Ambrosia Beetles
(Scolytinae: Xyleborini)
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Anthracnose (Oak)
(Discula quercina)
Armillaria Root Rot
(Armillaria spp.)
Bacterial Leaf Scorch
(Xylella fastidiosa subsp. Multiplex)
Botryosphaeria Canker
(Botryosphaeria spp)
Buck Moth
(Hemileuca maia)
Carpenterworm
(Prionoxystus robiniae)
Crown Gall
(Agrobacterium tumefeciens)
Cynipid Wasp
(Cynipidae)
Drought
Elm Spanworm
(Ennomos subsignarius)
Endothia Canker
(Endothia gyrosa)
Forest Tent Caterpillar
(Malacosoma disstria)
Frost Crack
Fusiform Rust
(Cronartium fusiforme)
Greenstriped Mapleworm
(Dryocampa rubicunda)
Herbicide Damage
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Hypoxylon Canker (Oak)
(Biscogniauxia atropunctata)
Improper Mulching
Improper Planting
Improper Pruning
Japanese Beetle
(Popillia japonica)
Leaf Scorch
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Leaf Spots (Oak)
(Tubakia quercina)
Leafy Mistletoe
(Phoradendron tomentosum)
Lightning Damage
Linden Looper
(Erannis tilaria)
Locust Leafminer
(Odontota dorsalis)
Mechanical Damage
Nutrient Deficiency
Oak Leaf Blister
(Taphrina caerulescens)
Oak Leafroller
(Archips semiferana)
Oak Skeletonizer
(Bucculatrix ainsliella)
Oak Wilt
(Bretziella fagacearum)
Overwatering
Phomopsis Canker
(Phomopsis spp.)
Phytophtora Root Rot
(Phytophtora spp.)
Pinkstriped Oakworm
(Anisota virginiensis)
Post Oak Decline
(Multiple agents)
Powdery Mildew
(Oidium sp.)
Redheaded Ash Borer
(Neoclytus acuminatus)
Soil Compaction
Solitary Oak Leafminer
(Cameraria hamadyadella)
Spiny Oakworm
(Anisota stigma)
Structural Root Rot
(Ganoderma sp.)
Underwatering
Variable Oakleaf Caterpillar
(Heterocampa manteo)
Walnut Caterpillar
(Datana integerrima)