- Bacterial Diseases
-
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