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Glossary

Select Suspected Cause

Ambrosia Beetles

Ambrosia Beetles
(Scolytinae: Xyleborini)
Anthracnose (Elm)

Anthracnose (Elm)
(Stegophora ulmea)
Armillaria Root Rot

Armillaria Root Rot
(Armillaria spp.)
Bacterial Leaf Scorch

Bacterial Leaf Scorch
(Xylella fastidiosa subsp. Multiplex)
Botryosphaeria Canker

Botryosphaeria Canker
(Botryosphaeria spp)
Carpenterworm

Carpenterworm
(Prionoxystus robiniae)
Cynipid Wasp

Cynipid Wasp
(Cynipidae)
Drought

Drought
     
Dutch Elm Disease

Dutch Elm Disease
(Ophiostoma novo ulmi)
Elm Leaf Beetle

Elm Leaf Beetle
(Pyrrhalta luteola)
Elm Spanworm

Elm Spanworm
(Ennomos subsignarius)
Fall Webworm

Fall Webworm
(Hyphantria cunea)
Frost Crack

Frost Crack
     
Herbicide Damage

Herbicide Damage
     
Improper Mulching

Improper Mulching
     
Improper Planting

Improper Planting
     
Improper Pruning

Improper Pruning
     
Japanese Beetle

Japanese Beetle
(Popillia japonica)
Larger Elm Leaf Beetle

Larger Elm Leaf Beetle
(Monocesta coryli)
Leaf Scorch

Leaf Scorch
     
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
     
Overwatering

Overwatering
     
Phytophtora Root Rot

Phytophtora Root Rot
(Phytophtora spp.)
Powdery Mildew

Powdery Mildew
(Oidium sp.)
Soil Compaction

Soil Compaction
     
Spring Cankerworm

Spring Cankerworm
(Paleacrita vernata)
Structural Root Rot

Structural Root Rot
(Ganoderma sp.)
Twig Girdler

Twig Girdler
(Oncideres pustulatus)
Underwatering

Underwatering
     
Variable Oakleaf Caterpillar

Variable Oakleaf Caterpillar
(Heterocampa manteo)