DISEASE: Bacterial blight
HOST: Geranium
Close-up of upper side of leaf with dark brown spots.
Bacterial blight | Geranium
DISEASE: Bacterial blight
HOST: Geranium (Pelargonium sp.)
PATHOGEN: Xanthomonas hortorum pv. pelargonii
PATHOGEN SYNONYM: Xanthomonas campestris pv. pelargonii
SOURCE: M. Daughtrey
DISEASE: Bacterial blight
HOST: Geranium
Close-up of lower side of leaf with dark brown lesions.
Bacterial blight | Geranium
DISEASE: Bacterial blight
HOST: Geranium (Pelargonium sp.)
PATHOGEN: Xanthomonas hortorum pv. pelargonii
PATHOGEN SYNONYM: Xanthomonas campestris pv. pelargonii
SOURCE: M. Daughtrey
DISEASE: Bacterial brown spot
HOST: Bean
Bean with water-soaked and necrotic lesions on pods and leaves.
Bacterial brown spot | Bean
DISEASE: Bacterial brown spot
HOST: Bean (Phaseolus vulgaris)
PATHOGEN: Pseudomonas syringae pv. syringae
SOURCE: H. Schwartz
DISEASE: Bacterial brown spot
HOST: Bean
Common bean with necrotic lesions on upper and lower surfaces of leaves. Lesions often are surrounded by bright yellow zones (not shown).
Bacterial brown spot | Bean
DISEASE: Bacterial brown spot
HOST: Bean (Phaseolus vulgaris)
PATHOGEN: Pseudomonas syringae pv. syringae
SOURCE: H. Schwartz
DISEASE: Bacterial brown spot
HOST: Bean
Leaves of common bean with shot-holes, a late stage of disease.
Bacterial brown spot | Bean
DISEASE: Bacterial brown spot
HOST: Bean (Phaseolus vulgaris)
PATHOGEN: Pseudomonas syringae pv. syringae
SOURCE: H. Schwartz
DISEASE: Bacterial brown spot
HOST: Bean
Leaves of dwarf bean exhibiting late stage of disease.
Bacterial brown spot | Bean
DISEASE: Bacterial brown spot
HOST: Bean (Phaseolus vulgaris)
PATHOGEN: Pseudomonas syringae pv. syringae
SOURCE: J. Young
DISEASE: Bacterial leaf spot
HOST: Geranium
Disease begins as water-soaked lesions that become brown to black and may coalesce, forming large necrotic areas.
Bacterial leaf spot | Geranium
DISEASE: Bacterial leaf spot
HOST: Geranium (Pelargonium sp.)
PATHOGEN: Pseudomonas cichorii
SOURCE: R. Raabe
DISEASE: Bacterial leaf spot
HOST: Geranium
Leaves with varying degrees of disease severity.
Bacterial leaf spot | Geranium
DISEASE: Bacterial leaf spot
HOST: Geranium (Pelargonium sp.)
PATHOGEN: Pseudomonas syringae pv. syringae
SOURCE: APS
DISEASE: Bacterial seed and seedling rot
HOST: Geranium
Cotyledons with water-soaked spots.
Bacterial seed and seedling rot | Geranium
DISEASE: Bacterial seed and seedling rot
HOST: Geranium (Pelargonium sp.)
PATHOGEN: Paenibacillus sp.
SOURCE: A. Magyarosy, D. Thomas