Armillaria Root Rot
(Armillaria spp.)
Botryosphaeria Canker
(Botryosphaeria spp)
Carpenterworm
(Prionoxystus robiniae)
Drought
Emerald Ash Borer
(Agrilus plannipennis)
Frost Crack
Herbicide Damage
Improper Planting
Improper Pruning
Leafy Mistletoe
(Phoradendron tomentosum)
Lightning Damage
Phytophtora Root Rot
(Phytophtora spp.)
Redheaded Ash Borer
(Neoclytus acuminatus)
Soil Compaction
Structural Root Rot
(Ganoderma sp.)
Underwatering