DISEASE: Bacterial blight
HOST: Lilac
Blighted twig with shriveled leaves and dark brown streaks on stem.
Bacterial blight | Lilac
DISEASE: Bacterial blight
HOST: Lilac (Syringa vulgaris)
PATHOGEN: Pseudomonas syringae pv. syringae
SOURCE: S. Thomson
DISEASE: Bacterial blight
HOST: Lilac
Lilac with blighted twigs.
Bacterial blight | Lilac
DISEASE: Bacterial blight
HOST: Lilac (Syringa vulgaris)
PATHOGEN: Pseudomonas syringae pv. syringae
SOURCE: W. Sinclair
DISEASE: Bacterial fasciation (Leafy gall)
HOST: Begonia
Leafy gall on stem.
Bacterial fasciation (Leafy gall) | Begonia
DISEASE: Bacterial fasciation (Leafy gall)
HOST: Begonia (Begonia sp.)
PATHOGEN: Rhodococcus fascians
SOURCE: M. Geesteranus, J. van der Wolf
DISEASE: Bacterial leaf spot (Blight)
HOST: Begonia
Initial symptoms appear as small, blisterlike lesions. As lesions age, they enlarge, producing broad patches of necrotic leaf tissue.
Bacterial leaf spot (Blight) | Begonia
DISEASE: Bacterial leaf spot (Blight)
HOST: Begonia (Begonia sp.)
PATHOGEN: Xanthomonas axonopodis pv. begoniae
PATHOGEN SYNONYM: Xanthomonas campestris pv. begoniae
SOURCE: APS
DISEASE: Bacterial leaf spot (Blight)
HOST: Begonia
Advanced stage of disease with dark, large necrotic areas on leaves and interveinal chlorosis.
Bacterial leaf spot (Blight) | Begonia
DISEASE: Bacterial leaf spot (Blight)
HOST: Begonia (Begonia sp.)
PATHOGEN: Xanthomonas axonopodis pv. begoniae
PATHOGEN SYNONYM: Xanthomonas campestris pv. begoniae
SOURCE: APS
DISEASE: Bacterial leaf spot and blight
HOST: Ficus
Infected twig with blight.
Bacterial leaf spot and blight | Ficus
DISEASE: Bacterial leaf spot and blight
HOST: Ficus (Ficus erecta)
PATHOGEN: Pseudomonas ficuserectae
SOURCE: M. Goto
DISEASE: Bacterial leaf spot
HOST: Ficus
Leaf exhibiting systemic invasion of veinal tissues.
Bacterial leaf spot | Ficus
DISEASE: Bacterial leaf spot
HOST: Ficus (Ficus lyrata)
PATHOGEN: Pseudomonas cichorii
SOURCE: J. Yuen
DISEASE: Witches'-broom
HOST: Lilac
Lilac with broomlike symptoms and dead twigs.
Witches'-broom | Lilac
DISEASE: Witches'-broom
HOST: Lilac (Syringa josiflexa 'Royalty')
PATHOGEN: 'Candidatus Phytoplasma fraxini'
PATHOGEN SYNONYM: Phytoplasma Ash yellows group
SOURCE: C. Hibben, W. Sinclair
DISEASE: Witches'-broom
HOST: Lilac
Small tree with some chlorotic leaves and deliquescent branching.
Witches'-broom | Lilac
DISEASE: Witches'-broom
HOST: Lilac (Syringa × prestoniae)
PATHOGEN: 'Candidatus Phytoplasma fraxini'
PATHOGEN SYNONYM: Phytoplasma Ash yellows group
SOURCE: W. Sinclair