Skip to main content
Illinois Extension
Plant Problems
Search
Give
Volunteer
Careers
Home
Animal Damage
Canada Goose
Eastern Mole
Vole
Yellow Belly Sapsucker
Environmental Damage
Chlorosis
Drought
Drowning and Edema
Winter Injury
Diseases
Bacterial Diseases
Angular Leaf Spot
Bacterial Blight/Canker
Bacterial Diseases of Beans
Bacterial Diseases of Solanaceous Crops
Bacterial Wilt of Cucurbits
Black Rot of Cole Crops
Crown Gall
Fire Blight
Wetwood
Fungal Disease
Anthracnose Diseases
Anthracnose in Flowers
Anthracnose in Turfgrass
Apple Scab
Black Knot
Black Spot
Botryosphaeria Canker/Dieback
Brown Patch in Turfgrass
Brown Spot
Cankers on Roses
Cedar Apple Rust
Cedar-Hawthorn Rust
Cedar-Quince Rust
Cercospora Blight
Cytospora Canker of Spruce
Daylily Leaf Streak
Diplodia (Sphaeropsis) Blight
Dogwood Anthracnose
Dollar Spot in Turfgrass
Downy Mildew
Dutch Elm Disease
Early Blight or Alternaria Leaf Spot
Fairy Rings
Fusarium Wilt
Gray Leaf Spot
Gray Mold (Botrytis)
Gray Mold on Annuals, Herbaceous Perennials
Gray Snow Mold
Gummy Stem Blight or Black Rot of Cucurbits
Helminthosporium Leaf Blights of Sweet Corn
Helminthosporium Leaf, Crown, and Root Diseases
Kabatina Tip Blight
Leaf Smuts
Lophodermium Needle Cast
Marssonia Leaf Spots and Blights
Mushrooms and Puffballs
Needle Cast of Spruce
Oak Leaf Blister
Oak Wilt
Peach Leaf Curl and Plum Pocket
Pestalotiopsis Blight
Phomopsis Blight
Phomopsis Gall
Phytophthora Blight
Phytophthora Canker, Basal Rot, Root Rot
Pine Cankers and Dieback
Pink Snow Mold
Powdery Mildew
Powdery Mildew on Flowers
Pythium Blight
Red Thread
Rhizosphaera Needle Cast
Rust in Turf
Rust in Vegetables
Scab of Cucurbits
Septoria Leaf Spot of Tomato
Slime Molds
Smooth Patch
Sooty Mold
Stigmina Needle Blight
Summer Patch and Necrotic Ring Spot
Verticillium Wilt in Small Fruits
Verticillium Wilt
Verticillium Wilt on Flowers
White Pine Blister Rust
White Rust
Wood Rots and Decays
Phytoplasma Disease
Ash Yellows
Aster Yellow
Elm Yellows
Herbicide Injury
Amino Acid Inhibitor Herbicide Injury
Glyphosate Herbicide Injury
Photosynthesis (PSI and PSII) Inhibitor Herbicide Injury
Pigment Inhibitor Herbicide Injury
Plant Growth Regulator Herbicide Injury
Insect Injury
Ants
Aphid
Apple Maggot
Asparagus Beetle
Bagworm
Bark Beetle
Bean Leaf Beetle
Bronze Birch Borer
Brown Marmorated Stink Bug
Cabbage Looper
Cabbageworm
Colorado Potato Beetle
Corn Earworm
Corn Rootworm
Cucumber Beetle
Cutworm
Diamondback Moth
Eastern Tent Caterpillar
European Corn Borer
European Pine Shoot Moth | Nantucket Pine Tip Moth
Fall Armyworm
False Chinch Bug
Flea Beetle
Hornworm
Japanese Beetle
Juniper Webworm
Leafhopper
Leafminer
Lygus Bug
Pales Weevil and Root Collar Weevil
Peach Tree Borer
Picnic Beetle
Pine Bark Adelgids
Pine Needle Scale
Pine Sawfly
Pine Tortoise Scale
Pitch Mass Borer
Root Maggot
Sawfly
Slug
Sod Webworm
Spittlebug
Spongy Moth
Spotted Lanternfly
Spruce Bud Scale
Spruce Gall Adelgids
Spruce Needle Miners
Spruce Spider Mite
Squash Bug
Squash Vine Borer
Stink Bug
Tarnished Plant Bug
Twospotted Spider Mite
White Grub
Whitefly
Zimmerman Pine Moth
Nematodes
Pine Wilt
Breadcrumb
Home
Plant Problems
Bacterial Diseases
Bacterial Diseases
College of Agricultural, Consumer & Environmental Sciences
Illinois Extension
Instagram
Facebook
YouTube
LinkedIn
101 Mumford Hall (MC-710)
1301 W. Gregory Dr.
Urbana, IL 61801
Email:
extension@illinois.edu
EEO
myExtension
Login