Plant Health Clinic > Image Library > Tree and Ornamental Diseases
Tree and Ornamental Diseases
Main Navigation
Herbaceous Ornamentals - Miscellaneous
- Anthracnose - Hosta
- Anthracnose - Kalanchoe
- Aphid Damage - Iris
- Aster Yellows on Coneflower
- Bacterial Blight - Geranium
- Bacterial Brown Spot - Orchid
- Bacterial Leaf Blight - Syngonium
- Bacterial Leaf Spot - Dianthus
- Bacterial Leaf Spot - Dieffenbachia
- Bacterial Leaf Spot - Zinnia
- Bacterial Wilt - Geranium
- Black Root Rot - Creeping Phlox
- Black Root Rot - Pansy
- Botrytis - Annual Vinca
- Botrytis - Petunia
- Botrytis Blight - Peony
- Broad Mite Damage - Iris
- Bud Blast - Daffodil
- Bud Moth Damage - Verbena
- Canker w/Fruiting Bodies - Camellia
- Cercospora Leaf Spot - Hydrangea
- Cercospora Leaf Spot - Peony
- Cercospora Leaf Spot - Zinnia
- Chlorosis - Camellia
- Corynespora - African Violet
- Crowded/Small - Daffodils
- Crown Rot - Ajuga
- Crown Rot - Day Lily
- Crown Rot - Hydrangea
- Crown Rot - Sedum
- Cucumber Mosaic Virus - Butterfly Bush
- Cucumber Mosaic Virus - Salvia
- Cycocel Toxicity - Geranium
- Cymbidium Mosaic Virus - Orchid
- Downy Mildew - Impatiens
- Edema Corky Lesions - Geranium
- Entomosporium Leaf Spot - Photinia
- Flower Blight - Camellia
- Foliar Nematode - Hosta
- Fusarium Wilt - Chrysanthemum
- Gray Mold - Geranium
- Gray Mold - Poinsettia
- Heterosporium Leaf Spot - Iris
- Hosta Virus X - (HVX)
- Impatiens Necrotic Spot Virus - New Guinea Impatiens
- INSV - African Violet
- INSV - Impatien
- Iris Borer Caterpillar
- Leaf Gall - Azalea
- Leaf Galls - Camellia
- Leaf Spot - Iris
- Leaf Streak - Day Lily
- Leaf Streak Lesions - Iris
- Leaf Stripe - Day Lily
- Leafhopper - Aster
- Monochaetia Leaf Spot - Camellia
- Phoma Stem Blight - Vinca
- Phytophthora Blight - Peony
- Phytophthora Stem Canker - Vinca
- Powdery Mildew - Columbine
- Powdery Mildew - Zinnia
- Pythium - Chrysanthemum
- Pythium Root Rot/Crown Rot - Pansy
- Pythium Wax Root Rot - Begonia
- Red Spot - Peony
- Rhizome Rot - Iris
- Ribbed Tea Mite Damage - Camellia
- Roundup Damage - Hydrangea
- Rust - Canna
- Rust - Daylily
- Rust - Geranium
- Rust - Hollyhock
- Rust - Iris
- Scab - Camellia
- Scab - Poinsettia
- Scale - Camellia
- Southern Blight - Hosta
- Stem Canker & Lesion - Vinca
- Sunscald & Leafspot - Camellia
- Tea Scale - Camellia
- Tomato Spotted Wilt Virus - New Guinea Impatiens
- Virus Symptoms - Orchid
- Yellow Mottle Virus - Camellia
- Yellows (Witches Broom) Cosmos Aster
Main Navigation
Miscellaneous
- Algal Leaf Spot - Viburnum
- Anthracnose Lesions
- Anthracnose - Liriope
- Anthracnose - Turf
- Aphids
- Artillery Fungus Spores on Siding
- Bird's Nest Fungus (non-pathogenic) - Mulch
- Borer Larvae
- Broad Mites
- Caterpillar Damage - Oak
- Cicada Damage
- Crown Rot - Liriope
- Cynipid Wasp
- Cyst Nematodes on Roots
- Discoloration Caused by Nematodes
- Dodder (parasitic plant)
- Dry Rot on a Two by Four
- Elegant Dog Stinkhorn
- Golden Tortoise Beetle
- Herbicide Damage
- Leafhoppers and Sharpshooters
- Leafroller - Larger Canna
- Leafroller - Lesser Canna
- Lichens (non-pathogenic) - Oak Tree
- Phytophthora Crown - Lirope
- Pod Distortion Caused by Aphids
- Poor Quality Infected Roots
- Powdery Mildew - Sedum
- Proper Angle for Sampling
- Ring Nematode on Turf
- Root Galling
- Root Knot Galling
- Sapsucker Damage
- Slime Flux - Trees
- Slime Mold (non-pathogenic) - Lirope
- Slime Mold (non-pathogenic) - Mulch
- Slime Mold on Mulch
- Slime Mold Patches
- Slime Mold Spore Masses
- Soil Solarization
- Sour Mulch
- Spring Leafroller - Oak
- Sting Nematode on Turf
- Sunburn - Camellia
- Sunburn - House Plant
- Tip Moth Cocoon
- Tip Moth Larva
- Tortoise Beetle
- TRSV
- Young Black Knot Gall
- Young Lesions
Main Navigation
Trees - Hardwood
- Abiotic Scorch - Japanese Maple
- Adult Borer - Dogwood
- Anthracnose - Ash Tree
- Anthracnose - Dogwood Tree
- Anthracnose - Maple Tree
- Anthracnose - Oak
- Anthracnose - Sycamore Tree
- Anthracnose Trunk Canker - Dogwood Tree
- Anthracnose - Walnut
- Apple Gall - Oak
- Armillaria - White Pine
- Aster Yellows - Ash Tree
- Bacterial Leaf - Fiddle Leaf Fig
- Bacterial Leaf Scorch - Elm Tree
- Bacterial Leaf Scorch - Gingko
- Bacterial Leaf Scorch - Oak
- Bacterial Leaf Scorch - Maple
- Bacterial Leaf Spot - Redbud
- Bacterial Spot Lesion - Maple
- Ball Galls - Oak
- Biscogniauxia Canker - Maple
- Black Canker - Willow Tree
- Black Spot - Elm Tree
- Black Spot Stromata - Elm
- Blight - Boxwood
- Blister Mite - Willow
- Borer Larva - Dogwood Tree
- Botryosphaeria Twig Canker - Oak
- Branch Cankers - Dogwood Tree
- Bud Mites - Juniper
- Bullet Gall - Hickory
- Canker - Japanese Maple
- Cercospora Leaf Spot - Willow
- Cercosporella - Mulberry
- CLRV - Dogwood Tree
- Didymosporina Aceris Fungus - Maple
- Dieback - Poplar
- Elderberry - Rust
- Eriophyid Galls - Redbud
- Finger Gall - Elm Tree
- Freeze Injury - Magnolia
- Fuzzy Bead Gall - Oak Tree
- Galls - Oak Tree
- Gall Wasp - Oak Tree
- Gouty Gall - Oak
- Heart Rot Conk - Oak Tree
- Horned Oak Gall - Oak Tree
- Hypoxylon Canker - Oak Tree
- Hypoxylon Canker - Sycamore Tree
- Jumping Oak Gall - Oak
- Leaf Blight - Cottonwood
- Leaf Blister - Oak Tree
- Leaftier Damage - Oak
- Leaf Vein Gall - Oak Tree
- Lichen Species - Branch
- Lichen Species - Buckeye
- Lichen Species - Hackberry
- Lecanium Scale - Oak
- Macrophoma - Boxwood
- Marssonina Leaf Blight - Cottonwood
- May Beetle Feeding Damage - Oak Tree
- Normal leaf Senescenc - Magnolia Tree
- Oak Wilt
- Orange Sap - Dogwood
- Phomopsis Gall - Hickory
- Phomopsis Gall - Oak
- Phylloxera - Hickory Tree
- Phylloxera Leaf Damage & Nymphs - Oak
- Physiological Leaf Spot - Tulip Tree
- Popcorn Disease - Mulberry
- Powdery Mildew - Boxwood
- Powdery Mildew - Crape Myrtle
- Powdery Mildew - Dogwood
- Powdery Mildew - Oak
- Purple Gumball Gall - Hickory
- Roly-Poly Gall - Oak
- Roundup Damage - Dogwood
- Rust - Cottonwood Tree
- Rust - Red Oak
- Scale Insects - Crytomeria-Japanese Cedar
- Septoria Leaf Spot - Dogwood
- Shearia Dieback - Magnolia
- Skeletonizer - Oak
- Slime Flux - Oak Tree
- Slime Mold - Cedar Tree
- Solitary Oak Leafminer - Oak
- Sooty Mold - Crape Myrtle
- Spiny Witch-Hazel Gall Aphid Damage - Birch
- Spot Anthracnose - Dogwood Tree
- Stegonosporium Canker - Maple
- Stem Canker - Poplar Tree
- Tar Spot - Maple
- Tip Moth Damage - Juniper
- Trunk Twig Canker - Dogwood Tree
- Unidentified Herbicide Damage - Oak
- Vein Pocket Gall - Oak
- Verticillium Wilt - Magnolia
- White Peach Scale - Mulberry
- Wooly Aphid - Willow Oak Tree
Main Navigation
Trees - Conifer
- Adult Monochamus Beetle
- Bagworm-Crawling Stage-Blue Spruce
- Bald Cypress Rust Mite Damage
- Branch Canker - Leyland Cypress
- Brown Spot Lesion - Pine
- Cedar-Apple Rust - Cedar
- Cedar-Apple Rust - Juniper
- Cedar-Quince Rust - Juniper
- Coleosporium Rust - Pine
- Cytospora Canker - Blue Spruce
- Dothistroma on Austrian Pine
- Eastern Pine Gall - Pine
- Gall Showing Telial Horns - Cedar Tree
- Needle Blight - Pine
- Needle Blight - Spruce
- Needle Rust - Pine
- Pinewood Nematode
- Pitch Canker - Pine Tree
- Quince Rust - Cedar
- Rhizosphaera Needle Cast - Blue Spruce
- Roundup Damage - Pine
- Sawfly Damage - Pine
- Twig Blight - Cedar
Main Navigation
Woody Ornamentals - Miscellaneous
- 2, 4-D Damage - Euonymus
- Adult Lace Bugs - Azalea
- Aecia - Hawthorn Fruit
- Anthracnose - Azalea
- Anthracnose - Euonymus
- Anthracnose - Ivy
- Anthracnose - Sweet Gum
- Bacterial Blight - Lilac
- Bacterial Blight - Viburnum
- Bacterial Leaf Spot - Viburnum
- Bacterial Spot - Laurel
- Bacterial Spot - Ivy
- Blight - Pachysandra
- Blossom Midges - Rose of Sharon
- Botrytis Blight - Heuchera
- Branch and Stem Rot - Vinca
- Brown Spot - Yucca
- Bud Moth Stem Damage/Larva - Verbena
- Cercospora Leaf Spot - Azalea
- Cercospora Leaf Spot - Crapemyrtle
- Cercospora Leaf Spot - Creeping Mulberry
- Cercospora Leaf Spot - Hosta
- Cercospora Leaf Spot - Hydrangea
- Cercospora Leaf Spot - Lilac
- Cercospora Leaf Spot - Viburnum
- Clematis Wilt
- Crown Gall - Euonymous
- Crown Gall - Wisteria
- Cucumber Mosaic Virus - Hosta
- Cylindrocladium Blight - Azalea
- Cylindrocladium Leaf Spot - Holly
- Entomosporium Leaf Spot - Indian Hawthorne
- Fire Blight - Ornamental Pear
- Fire Blight - Pyracantha
- Heat/Drought stress (non-infectious) - Ornamental Pear
- Hosta Virus X
- Inkberry Leafminer - Holly
- Lace Bug Damage - Azalea
- Lace Bug - Lantana
- Leaf and Flower Gall - Azalea
- Leaf and Flower Gall - Camellia
- Leafspot - Hawthorn
- Leatherleaf - Viburnum
- Needle Blight - Yew
- Nematode - Lamb's Ear
- Petal Blight - Azalea - Rhododendron
- Phomopsis Gall - Forsythia
- Phyllosticta Leaf Spot - Aucuba
- Phytophthora - Rhododendron
- Phytophthora Blight - Holly
- Phytophthora Crown Rot - Lirope
- Phytophthora Dieback - Azaleas
- Phytophthora Root Rot - Yew
- Powdery Mildew - Crapemyrtle
- Powdery Mildew - Euonymous
- Powdery Mildew - Hydrangea
- Purple or Ribbed Tea mite - Camellia
- Root Rot - Indian Hawthorne
- Root Rot - Yew
- Rust - Azalea
- Rust - Elderberry
- Rust - Heuchera
- Rust of Leaves - Hawthorn
- Scab - Pyracantha
- Scale - Euonymus
- Scorch - Rhododendron
- Sooty Mold - Cherry Laurel
- Sooty Mold (non-infectious) - Crapemyrtle
- Sooty Mold (non-infectious) - Gardenia
- Sunburn - Yew
- Twig Blight - Arborvitae
- Twig Blight - Creeping Juniper
- Twig Canker - Yew
- Winter Damage - Oleander
- Winter Injury - Aucuba
- Winter Injury - Camellia
- Winter Injury - Holly