RESULTS

(3)

FILTER

DISEASE: Bacterial leaf spot

HOST: Laurel (California laurel)

Leaf with dark brown, angular spots.

Bacterial leaf spot | Laurel (California laurel)

DISEASE: Bacterial leaf spot

HOST: Laurel (California laurel) (Umbellularia californica)

PATHOGEN: Pseudomonas sp.

PATHOGEN SYNONYM: Pseudomonas lauracearum

SOURCE: W. Sinclair

DISEASE: Bacterial leaf spot

HOST: Panax

Leaf with large, brown necrotic spots.

Bacterial leaf spot | Panax

DISEASE: Bacterial leaf spot

HOST: Panax (Polyscias guilfoylei)

PATHOGEN: Xanthomonas campestris

SOURCE: A. Alvarez

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