Adelgids, Bark beetles, Blister Rust, Canker, Sawfly Larvae, Spruce spider mite, White pine weevil
Botrytis collar rot, Crown gall, Cucumber mosaic, Downy mildew, Impatiens necrotic spot, Leaf curl, Phytophthora, Rhizoctonia crown rot, Root rot, Rust, Sclerotinia blight, Southern blight