Armillaria Root Rot
(Armillaria spp.)
Dogwood Borer
(Synanthedon scitula)
Frost Crack
Hypoxylon Canker
(Hypoxylon tinctor)
Improper Mulching
Improper Pruning
Lightning Damage
Mechanical Damage
Phytophthora Root Rot
(Phytophthora spp.)
Redheaded Ash Borer
(Neoclytus acuminatus)
Soil Compaction
Structural Root Rot
(Ganoderma sp.)