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Glossary

Select Suspected Cause

Dothistroma Needle Blight

Dothistroma Needle Blight
(Dothistroma spp)
Entomosporium Leaf Spot

Entomosporium Leaf Spot
(Entomosporium spp)
Fireblight

Fireblight
(Erwinia amylovora)
Herbicide Damage

Herbicide Damage
     
Leaf Scorch

Leaf Scorch
     
Leaf Spots (Maple-Sycamore)

Leaf Spots (Maple-Sycamore)
(Rhytisma acerinum)
Leaf Spots (Oak)

Leaf Spots (Oak)
(Tubakia quercina)
Lecanium Scale

Lecanium Scale
(Coccus hesperidium)
Nutrient Deficiency

Nutrient Deficiency
     
Oak Leaf Blister

Oak Leaf Blister
(Taphrina caerulescens)
Phytophtora Root Rot

Phytophtora Root Rot
(Phytophtora spp.)
Powdery Mildew

Powdery Mildew
(Oidium sp.)
Solitary Oak Leafminer

Solitary Oak Leafminer
(Cameraria hamadyadella)
Underwatering

Underwatering