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: Coreopsis
Bacterial fasciation of coreopsis.
Bacterial fasciation (Leafy gall) | Coreopsis
DISEASE: Bacterial fasciation (Leafy gall)
HOST: Coreopsis (Coreopsis sp.)
PATHOGEN: Rhodococcus fascians
SOURCE: M. Putnam
DISEASE: Bacterial needle blight
HOST: China fir
Leaves with brown blotches. Some are dead.
Bacterial needle blight | China fir
DISEASE: Bacterial needle blight
HOST: China fir (Cunninghamia lanceolata)
PATHOGEN: Pseudomonas syringae pv. cunninghamiae
SOURCE: M. Goto
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