Ornamentals – Shrubs (H-Z)

Diseases

• Hypericum: Rust

Diseases

• Kinnikinnick: Leaf gall
• Kinnikinnick: Leaf spot
• Kinnikinnick: Rust

Insects

• Kinnikinnick: Aphid (Manzanita leafgall aphid)

Diseases

• Lilac: Bacterial blight
• Lilac: Powdery mildew

Insects

• Lilac: Lilac borer
• Lilac: Lilac leafminer
• Lilac: Oystershell scale

Diseases

• Photinia: Leaf spot (Diplocarpon)
• Photinia: Physiological leaf spot
• Photinia: Powdery mildew

Insects

• Photinia: Aphids
• Photinia: Root weevils

Diseases

• Pieris (Andromeda): Leaf spot
• Pieris (Andromeda): Ramorum leaf and shoot blight (Sudden oak death)
• Pieris (Andromeda): Root rot & dieback

Insects

• Pieris (Andromeda): Black vine weevil

Diseases

• Pyracantha: Scab

Diseases

• Rhododendron: Armillaria root rot
• Rhododendron: Botrytis shoot blight
• Rhododendron: Gray blight
• Rhododendron: Leaf spot
• Rhododendron: Lime-induced chlorosis
• Rhododendron: Marginal leaf necrosis
• Rhododendron: Physiological leaf spot
• Rhododendron: Phytophthora blight
• Rhododendron: Phytophthora root rot
• Rhododendron: Powdery mildew
• Rhododendron: Ramorum leaf and shoot blight (Sudden oak death)
• Rhododendron: Rust
• Rhododendron: Salt injury
• Rhododendron: Sunburn
• Rhododendron: Tissue proliferation

Insects

• Rhododendron: Aphids
• Rhododendron: Azalea bark scale
• Rhododendron: Caterpillars
• Rhododendron: Lecanium scale
• Rhododendron: Rhododendron lace bug
• Rhododendron: Rhododendron whitefly
• Rhododendron: Root weevils

Insects

• Skimmia: Spider mites

Diseases

• Viburnum: Bacterial blight (Leaf spot)
• Viburnum: Leaf spot
• Viburnum: Powdery mildew
• Viburnum: Ramorum leaf and shoot blight (Sudden oak death)
• Viburnum: Shoot blight (Gray mold)

Insects

• Viburnum: Bean aphids
• Viburnum: Root weevils
• Viburnum: Viburnum leaf beetle