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

HOST: Crown-of-thorns

Leaves with brown lesions surrounded by bright yellow halos.

Bacterial leaf spot | Crown-of-thorns

DISEASE: Bacterial leaf spot

HOST: Crown-of-thorns (Euphorbia milii)

PATHOGEN: Xanthomonas axonopodis pv. poinsettiicola

PATHOGEN SYNONYM: Xanthomonas campestris pv. poinsettiicola

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