DISEASE: Bacterial leaf spot
HOST: Magnolia
Leaf with black, angular spots.
![](/sites/default/files/plant_disease/images/0516.jpg)
Bacterial leaf spot | Magnolia
DISEASE: Bacterial leaf spot
HOST: Magnolia (Magnolia soulangiana)
PATHOGEN: Pseudomonas cichorii
SOURCE: R. Raabe
DISEASE: Bacterial leaf spot
HOST: Magnolia
Leaf with large, dark brown to black necrotic areas.
![](/sites/default/files/plant_disease/images/0517.jpg)
Bacterial leaf spot | Magnolia
DISEASE: Bacterial leaf spot
HOST: Magnolia (Magnolia grandiflora)
PATHOGEN: Pseudomonas cichorii
SOURCE: J. Mullen
DISEASE: Witches'-broom
HOST: Paulownia (Empress tree)
Witches'-broom of paulownia.
![](/sites/default/files/plant_disease/images/0655.jpg)
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