RESULTS

(3)

FILTER

DISEASE: Aster yellows

HOST: Squash

Diagnostic characteristics for the disease are yellowing of young leaves, proliferation of secondary shoots, and rigid erect habit. Leaves are misshapen and smaller than normal and have stiff, thick laminae.

Aster yellows | Squash

DISEASE: Aster yellows

HOST: Squash (Cucurbita sp.)

PATHOGEN: 'Candidatus Phytoplasma asteris'

PATHOGEN SYNONYM: Phytoplasma Aster yellows group

SOURCE: S. Miller

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 leaf spot

HOST: Schefflera

Leaf with many small, pinpoint-sized lesions and a few large lesions.

Bacterial leaf spot | Schefflera

DISEASE: Bacterial leaf spot

HOST: Schefflera (Schefflera arboricola)

PATHOGEN: Xanthomonas hortorum pv. hederae

PATHOGEN SYNONYM: Xanthomonas campestris pv. hederae

SOURCE: A. Chase