RESULTS

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DISEASE: Bacterial leaf spot

HOST: Ivy

English ivy leaves with typical chlorotic halos around spots.

Bacterial leaf spot | Ivy

DISEASE: Bacterial leaf spot

HOST: Ivy (Hedera helix)

PATHOGEN: Xanthomonas hortorum pv. hederae

PATHOGEN SYNONYM: Xanthomonas campestris pv. hederae

SOURCE: S. Thomson

DISEASE: Bacterial leaf streak and stripe

HOST: Grass

Vasey grass with yellowish to brownish red streaks and stripes.

Bacterial leaf streak and stripe | Grass

DISEASE: Bacterial leaf streak and stripe

HOST: Grass (Paspalum urvillei)

PATHOGEN: Acidovorax avenae

PATHOGEN SYNONYM: Acidovorax avenae subsp. avenae

SOURCE: R. Gitaitis

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