RESULTS

(6)

FILTER

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 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: Fire blight

HOST: Scarlet firethorn

Pyracantha with blighted twig. Ingress was probably through blossoms. Cankers commonly occur on branches.

Fire blight | Scarlet firethorn

DISEASE: Fire blight

HOST: Scarlet firethorn (Pyracantha coccinea)

PATHOGEN: Erwinia amylovora

SOURCE: W. Sinclair

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