Rhododendron
Rhododendron deciduous
Ericaceae · broadleaf · introduced
Diseases (28)
Root Rot (Phytophthora spp.)
Podosphaera aphanis var. aphanis Powdery Mildew
Ovulinia azaleae Ovulinia Petal Blight
Non-pathogenic (iron deficiency) Lime-induced Chlorosis
Various fungi (Phyllosticta spp., Septoria spp., Cercospo... Leaf Spot
Exobasidium vaccinii Leaf and Flower Gall
Cylindrocladium scoparium Cylindrocladium Blight and Root Rot
Botrytis cinerea Botrytis Petal Blight
Marginal leaf necrosis
Rhododendron and Cutting Rots
Non-pathogenic (abiotic stress) Leaf Burn
abiotic (drought, heat stress) or bacterial (Xylella fast... Leaf Scorch
Phytophthora Root Rot and Wilt
Ramorum Leaf Blight
Botryosphaeria dothidea Botryosphaeria Dieback
Seifertia azaleae Bud Blight
A potexvirus, rhododendron necrotic ringspot virus, has b... Necrotic Ringspot
Many different Phytophthora Blight and Dieback
Phytophthora ramorum"filthy five\" genera are inc Ramorum Leaf Blight and Shoot Dieback
Thekopsora minima and Naohidemyces vaccinii Rust
Taphrina wiesneri Witches' Broom
Armillaria ostoyae Armillaria Root Rot
Botrytis cinerea Botrytis Shoot Blight
Pestalotiopsis sydowiana Gray Blight
Non-pathogenic (physiological disorder) Physiological leaf spot
Phytophthora spp. Phytophthora Blight
Phytophthora spp. (P Phytophthora Root Rot
Phytophthora ramorum Ramorum leaf and shoot blight (Sudden oak death)
Pests (21)
Tetranychidae Spider mite
Cylindrocopturus furnissi Root weevil
Choristoneura rosaceana Obliquebanded Leafroller
Azalea leafminer
Stephanitis pyrioides Azalea Lace Bug
Acanthococcus azaleae Azalea bark scale
Salt injury
Sunburn
Tissue Proliferation
Cinara occidentalis, Cinara abietis Aphid
Caterpillars
Nuculaspis californica Lecanium scale
Stephanitis rhododendri Rhododendron lace bug
Dialeurodes chittendeni Rhododendron whitefly
Azalea sawfly
Lace bug
Azalea and rhododendron lace bug
Carnation tortrix
Cottony cushion scale
Rhododendron bud moth
Nematode, Stunt
Cultivars (1)
Azalea Examples
Common name: Deciduous Azalea