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Disease
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Dothistroma Needle Blight
(Dothistroma spp)
Entomosporium Leaf Spot
(Entomosporium spp)
Fireblight
(Erwinia amylovora)
Herbicide Damage
Leaf Scorch
Leaf Spots (Maple-Sycamore)
(Rhytisma acerinum)
Leaf Spots (Oak)
(Tubakia quercina)
Lecanium Scale
(Coccus hesperidium)
Nutrient Deficiency
Oak Leaf Blister
(Taphrina caerulescens)
Phytophtora Root Rot
(Phytophtora spp.)
Powdery Mildew
(Oidium sp.)
Solitary Oak Leafminer
(Cameraria hamadyadella)
Underwatering