- Apple Mosaic Virus
- Apple Scab
- Armillaria Root Rot
- Bitter Rot
- Blister Spot
- Black pox
- Black Root Rot
- Black Rot
- Blue Mold
- Brooks Spot
- Cedar-Apple Rust
- Fire Blight
- Fly Speck
- ‘Golden Delicious’ Necrotic Leaf Blotch
- Latent Viruses
- Nectria Canker
- Nectria Twig Blight
- Phytophthora Root, Crown and Collar Rot
- Powdery Mildew
- Quince Rust
- Sooty Blotch
- Southern Blight
- Thread Blight
- Union Necrosis and Decline
- Viruses
- White Root Rot
- White Rot
- Wood Rots
- X-Spot