Armillaria Root Rot
(Armillaria spp.)
Structural Root Rot
(Ganoderma sp.)
Cedar Hawthorn Rust
(Gymnosporangium juniperi-virginiana)
Drought
Frost Crack
Winter Burn
Herbicide Damage
Lightning Damage
Underwatering
Soil Compaction
Improper Pruning
Improper Planting