DISEASE: Bacterial leaf spot
HOST: Panax
Leaf with large, brown necrotic spots.

Bacterial leaf spot | Panax
DISEASE: Bacterial leaf spot
HOST: Panax (Polyscias guilfoylei)
PATHOGEN: Xanthomonas campestris
SOURCE: A. Alvarez
DISEASE: Crown gall
HOST: Blackberry
Crown gall of blackberry.

Crown gall | Blackberry
DISEASE: Crown gall
HOST: Blackberry (Rubus sp.)
PATHOGEN: Agrobacterium tumefaciens
PATHOGEN SYNONYM: Rhizobium sp.
SOURCE: J. Young, D. Watson
DISEASE: Witches'-broom
HOST: Paulownia (Empress tree)
Witches'-broom of paulownia.

Witches'-broom | Paulownia (Empress tree)
DISEASE: Witches'-broom
HOST: Paulownia (Empress tree) (Paulownia tomentosa)
PATHOGEN: 'Candidatus Phytoplasma' sp.
PATHOGEN SYNONYM: Phytoplasma (undefined)
SOURCE: R. Davis, M. Davis