DISEASE: Bacterial blight
HOST: Parsnip
Parsnip with severe blight symptoms. There also is browning of the vascular system. Rot may progress from the crown into roots.
![](/sites/default/files/plant_disease/images/0654.jpg)
Bacterial blight | Parsnip
DISEASE: Bacterial blight
HOST: Parsnip (Pastinaca sativa)
PATHOGEN: Pseudomonas viridiflava
SOURCE: J. Hunter
DISEASE: Bacterial wilt and dieback
HOST: Willow
Cross sections of the characteristic "watermark stain" of diseased wood. Wilt and dieback occur as disease progresses.
![](/sites/default/files/plant_disease/images/0998.jpg)
Bacterial wilt and dieback | Willow
DISEASE: Bacterial wilt and dieback
HOST: Willow (Salix sp.)
PATHOGEN: Brenneria salicis
PATHOGEN SYNONYM: Erwinia salicis
SOURCE: Y. Sakamoto, M. Goto
DISEASE: Bacterial wilt and dieback
HOST: Willow
Severely diseased tree with dieback symptoms.
![Bacterial wilt and dieback](/sites/default/files/plant_disease/images/0999.jpg)
Bacterial wilt and dieback | Willow
DISEASE: Bacterial wilt and dieback
HOST: Willow (Salix sp.)
PATHOGEN: Brenneria salicis
PATHOGEN SYNONYM: Erwinia salicis
SOURCE: Y. Sakamoto, M. Goto
DISEASE: Slime flux
HOST: Willow
Foam at site of infection. Slime fluxes are common but the causal agent has not been identified.
![](/sites/default/files/plant_disease/images/0997.jpg)
Slime flux | Willow
DISEASE: Slime flux
HOST: Willow (Salix sp.)
PATHOGEN: Causal agent unknown
SOURCE: S. Thomson