RESULTS

(4)

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 leaf spot

HOST: Snapdragon

Leaves with large necrotic areas with brownish centers and purplish margins. Lesions are slightly sunken.

Bacterial leaf spot | Snapdragon

DISEASE: Bacterial leaf spot

HOST: Snapdragon (Antirrhinum majus)

PATHOGEN: Pseudomonas syringae pv. antirrhini

SOURCE: R. Raabe

DISEASE: Bacterial wilt

HOST: Squash

Field with severe symptoms of wilt. Foliage often is chlorotic and leaf margins may be chlorotic and necrotic before plant death. Bacterial ooze may be seen streaming from the xylem when infected stems are cut.

Bacterial wilt | Squash

DISEASE: Bacterial wilt

HOST: Squash (Cucurbita maxima)

PATHOGEN: Erwinia tracheiphila

SOURCE: B. Jacobsen, M. Shurtleff