RESULTS

(3)

FILTER

DISEASE: Aster yellows

HOST: Daisy

Daisy with stunted and malformed flowers.

Aster yellows | Daisy

DISEASE: Aster yellows

HOST: Daisy (Euryops speciosissimus)

PATHOGEN: 'Candidatus Phytoplasma asteris'

PATHOGEN SYNONYM: Phytoplasma Aster yellows group

SOURCE: R. Raabe

DISEASE: Bacterial leaf spot and blight

HOST: Parsley

Blighted leaves with large, brown necrotic areas.

Bacterial leaf spot and blight | Parsley

DISEASE: Bacterial leaf spot and blight

HOST: Parsley (Petroselinum crispum)

PATHOGEN: Pseudomonas syringae pv. apii

SOURCE: APS

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