RESULTS

(6)

FILTER

DISEASE: Bacterial blight

HOST: Grass

Timothy grass with light-colored lesions caused by unidentified Xanthomonas sp.

Bacterial blight | Grass

DISEASE: Bacterial blight

HOST: Grass (Phleum pratense)

PATHOGEN: Xanthomonas sp.

SOURCE: M. Shurtleff

DISEASE: Bacterial leaf spot (Blight)

HOST: Elderberry

Elderberry with dark brown to blackish angular leaf spots.

Bacterial leaf spot (Blight) | Elderberry

DISEASE: Bacterial leaf spot (Blight)

HOST: Elderberry (Sambucus racemosa)

PATHOGEN: Xanthomonas sp.

SOURCE: S. Mohan

DISEASE: Bacterial leaf spot (Head rot)

HOST: Lettuce

Leaf with black, greasy spots that tend to be vein delimited. Lesions begin as small, angular, water-soaked lesions that coalesce, resulting in large necrotic areas.

Bacterial leaf spot (Head rot) | Lettuce

DISEASE: Bacterial leaf spot (Head rot)

HOST: Lettuce (Lactuca sativa)

PATHOGEN: Xanthomonas axonopodis pv. vitians

PATHOGEN SYNONYM: Xanthomonas campestris pv. vitians

SOURCE: A. Alvarez

DISEASE: Center rot

HOST: Onion

Early symptoms of disease are necrotic, bleached areas on young leaves that typically wilt.

Center rot | Onion

DISEASE: Center rot

HOST: Onion (Allium cepa)

PATHOGEN: Pantoea ananatis

SOURCE: R. Gitaitis

DISEASE: Center rot

HOST: Onion

Advanced stage of center rot. The bacterium has moved down from leaves into the bulb.

Center rot | Onion

DISEASE: Center rot

HOST: Onion (Allium cepa)

PATHOGEN: Pantoea ananatis

SOURCE: H. Schwartz

DISEASE: Center rot

HOST: Onion

Bulb with pale yellow, discolored decayed area.

Center rot | Onion

DISEASE: Center rot

HOST: Onion (Allium cepa)

PATHOGEN: Pantoea ananatis

SOURCE: H. Schwartz