DISEASE: Bacterial blight
HOST: Bindweed
Water-soaked areas and angular leaf spots with yellow ooze.
Bacterial blight | Bindweed
DISEASE: Bacterial blight
HOST: Bindweed (Convolvulus arvensis)
PATHOGEN: Xanthomonas campestris pv. convolvuli
SOURCE: S. Mohan
DISEASE: Bacterial blight
HOST: Poppy
The disease begins with water-soaked lesions that turn brown to black. They may be surrounded by a translucent ring. Buds, leaves, flowers, and pods are affected.
Bacterial blight | Poppy
DISEASE: Bacterial blight
HOST: Poppy (Eschscholzia californica)
PATHOGEN: Xanthomonas campestris pv. papavericola
SOURCE: M. Daughtrey
DISEASE: Crown gall
HOST: Poppy
Crown gall of California poppy, a native wild flower.
Crown gall | Poppy
DISEASE: Crown gall
HOST: Poppy (Eschscholzia californica)
PATHOGEN: Agrobacterium tumefaciens
PATHOGEN SYNONYM: Rhizobium sp.
SOURCE: M. Schroth
DISEASE: Halo blight
HOST: Bean
'Baby Fordhook' with water-soaked leaf lesions without halos. This strain of the pathogen is not systemic on this cultivar.
Halo blight | Bean
DISEASE: Halo blight
HOST: Bean (Phaseolus lunatus 'Baby Fordhook')
PATHOGEN: Pseudomonas syringae pv. phaseolicola
PATHOGEN SYNONYM: Pseudomonas savastanoi pv. phaseolicola
SOURCE: M. Schroth