RESULTS

(4)

FILTER

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

DISEASE: Brown blotch

HOST: Mushroom

Black discoloration of basal portions of fruit bodies. Healthy (left).

Brown blotch | Mushroom

DISEASE: Brown blotch

HOST: Mushroom (Flammulina velutipes)

PATHOGEN: Pseudomonas tolaasii

SOURCE: K. Suyama, M. Goto

DISEASE: Brown blotch

HOST: Mushroom

Black discoloration of basal portion of fruit bodies.

Brown blotch | Mushroom

DISEASE: Brown blotch

HOST: Mushroom (Flammulina velutipes)

PATHOGEN: Pseudomonas tolaasii

SOURCE: K. Suyama, 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