Select Suspected Cause

Ambrosia Beetles

Ambrosia Beetles
(Scolytinae: Xyleborini)
Armillaria Root Rot

Armillaria Root Rot
(Armillaria spp.)
Drought

Drought
     
Fireblight

Fireblight
(Erwinia amylovora)
Frost Crack

Frost Crack
     
Herbicide Damage

Herbicide Damage
     
Improper Mulching

Improper Mulching
     
Improper Planting

Improper Planting
     
Improper Pruning

Improper Pruning
     
Leaf Scorch

Leaf Scorch
     
Leafy Mistletoe

Leafy Mistletoe
(Phoradendron tomentosum)
Lightning Damage

Lightning Damage
     
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
     
Structural Root Rot

Structural Root Rot
(Ganoderma sp.)
Twig Girdler

Twig Girdler
(Oncideres pustulatus)
Underwatering

Underwatering