Select Suspected Cause

Hypoxylon Canker

Hypoxylon Canker
(Hypoxylon tinctor)
Armillaria Root Rot

Armillaria Root Rot
(Armillaria spp.)
Leafy Mistletoe

Leafy Mistletoe
(Phoradendron tomentosum)
Structural Root Rot

Structural Root Rot
(Ganoderma sp.)
Drought

Drought
     
Frost Crack

Frost Crack
     
Herbicide Damage

Herbicide Damage
     
Lightning Damage

Lightning Damage
     
Underwatering

Underwatering
     
Soil Compaction

Soil Compaction
     
Improper Pruning

Improper Pruning
     
Improper Planting

Improper Planting
     
Phytophtora Root Rot

Phytophtora Root Rot
(Phytophtora spp.)
Botryosphaeria Canker

Botryosphaeria Canker
(Botryosphaeria spp)
Ambrosia Beetles

Ambrosia Beetles
(Scolytinae: Xyleborini)