Select Suspected Cause

Ambrosia Beetles

Ambrosia Beetles
(Scolytinae: Xyleborini)
Anthracnose (Oak)

Anthracnose (Oak)
(Discula quercina)
Armillaria Root Rot

Armillaria Root Rot
(Armillaria spp.)
Bacterial Leaf Scorch

Bacterial Leaf Scorch
(Xylella fastidiosa subsp. Multiplex)
Ball Moss

Ball Moss
(Tilandsia recurvata)
Botryosphaeria Canker

Botryosphaeria Canker
(Botryosphaeria spp)
Buck Moth

Buck Moth
(Hemileuca maia)
Carpenterworm

Carpenterworm
(Prionoxystus robiniae)
Cynipid Wasp

Cynipid Wasp
(Cynipidae)
Drought

Drought
     
Elm Spanworm

Elm Spanworm
(Ennomos subsignarius)
Endothia Canker

Endothia Canker
(Endothia gyrosa)
Forest Tent Caterpillar

Forest Tent Caterpillar
(Malacosoma disstria)
Frost Crack

Frost Crack
     
Fusiform Rust

Fusiform Rust
(Cronartium fusiforme)
Greenstriped Mapleworm

Greenstriped Mapleworm
(Dryocampa rubicunda)
Herbicide Damage

Herbicide Damage
     
Hypoxylon Canker (Oak)

Hypoxylon Canker (Oak)
(Biscogniauxia atropunctata)
Improper Mulching

Improper Mulching
     
Improper Planting

Improper Planting
     
Improper Pruning

Improper Pruning
     
Japanese Beetle

Japanese Beetle
(Popillia japonica)
Leaf Scorch

Leaf Scorch
     
Leaf Spots (Oak)

Leaf Spots (Oak)
(Tubakia quercina)
Leafy Mistletoe

Leafy Mistletoe
(Phoradendron tomentosum)
Lightning Damage

Lightning Damage
     
Linden Looper

Linden Looper
(Erannis tilaria)
Locust Leafminer

Locust Leafminer
(Odontota dorsalis)
Mechanical Damage

Mechanical Damage
     
Nutrient Deficiency

Nutrient Deficiency
     
Oak Leaf Blister

Oak Leaf Blister
(Taphrina caerulescens)
Oak Leafroller

Oak Leafroller
(Archips semiferana)
Oak Skeletonizer

Oak Skeletonizer
(Bucculatrix ainsliella)
Oak Wilt

Oak Wilt
(Bretziella fagacearum)
Orangestriped Oakworm

Orangestriped Oakworm
(Anisota senatoria)
Overwatering

Overwatering
     
Phomopsis Canker

Phomopsis Canker
(Phomopsis spp.)
Phytophtora Root Rot

Phytophtora Root Rot
(Phytophtora spp.)
Pinkstriped Oakworm

Pinkstriped Oakworm
(Anisota virginiensis)
Powdery Mildew

Powdery Mildew
(Oidium sp.)
Redheaded Ash Borer

Redheaded Ash Borer
(Neoclytus acuminatus)
Soil Compaction

Soil Compaction
     
Solitary Oak Leafminer

Solitary Oak Leafminer
(Cameraria hamadyadella)
Spiny Oakworm

Spiny Oakworm
(Anisota stigma)
Structural Root Rot

Structural Root Rot
(Ganoderma sp.)
Twig Girdler

Twig Girdler
(Oncideres pustulatus)
Underwatering

Underwatering
     
Variable Oakleaf Caterpillar

Variable Oakleaf Caterpillar
(Heterocampa manteo)
Walnut Caterpillar

Walnut Caterpillar
(Datana integerrima)