DISEASE: Bacterial leaf spot and canker
HOST: Sweetgum
Leaves with irregular necrotic lesions.

Bacterial leaf spot and canker | Sweetgum
DISEASE: Bacterial leaf spot and canker
HOST: Sweetgum (Liquidambar styraciflua)
PATHOGEN: Pseudomonas syringae pv. syringae
SOURCE: A. Bishop
DISEASE: Bacterial leaf spot and canker
HOST: Sweetgum
Stem canker of sweetgum.

Bacterial leaf spot and canker | Sweetgum
DISEASE: Bacterial leaf spot and canker
HOST: Sweetgum (Liquidambar styraciflua)
PATHOGEN: Pseudomonas syringae pv. syringae
SOURCE: A. Bishop
DISEASE: Crown gall
HOST: Euonymus
Dark, rough galls at base of euonymus.

Crown gall | Euonymus
DISEASE: Crown gall
HOST: Euonymus (Euonymus sp.)
PATHOGEN: Agrobacterium tumefaciens
PATHOGEN SYNONYM: Rhizobium sp.
SOURCE: L. Claflin
DISEASE: Fire blight
HOST: Plum
Typical symptoms of fire blight-infected, young European plum shoot.

Fire blight | Plum
DISEASE: Fire blight
HOST: Plum (Prunus domestica 'Empress')
PATHOGEN: Erwinia amylovora
SOURCE: S. Mohan