DISEASE: Bacterial leaf spot
HOST: Hibiscus
Hibiscus leaves with large, black spots with chlorosis occurring near some lesions.

Bacterial leaf spot | Hibiscus
DISEASE: Bacterial leaf spot
HOST: Hibiscus (Hibiscus sp.)
PATHOGEN: Xanthomonas campestris pv. esculenti
SOURCE: R. Raabe
DISEASE: Bacterial wilt
HOST: Muskmelon
Severely diseased plants as noted by dying runners.

Bacterial wilt | Muskmelon
DISEASE: Bacterial wilt
HOST: Muskmelon (Cucumis melo)
PATHOGEN: Erwinia tracheiphila
SOURCE: M. Shurtleff
DISEASE: Bacterial wilt
HOST: Muskmelon
Wilt-devastated muskmelon field.

Bacterial wilt | Muskmelon
DISEASE: Bacterial wilt
HOST: Muskmelon (Cucumis melo)
PATHOGEN: Erwinia tracheiphila
SOURCE: M. Shurtleff
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