RESULTS

(5)

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DISEASE: Bacterial leaf spot (Blight)

HOST: Poinsettia

Blighted leaves and stems.

Bacterial leaf spot (Blight) | Poinsettia

DISEASE: Bacterial leaf spot (Blight)

HOST: Poinsettia (Euphorbia pulcherrima)

PATHOGEN: Curtobacterium flaccumfaciens pv. poinsettiae

SOURCE: APS

DISEASE: Bacterial leaf spot (Blight)

HOST: Poinsettia

Poinsettia with diseased stem. Woody stems may have a yellowed cortex and dark vascular tissues. The stem tip may curve with deformed terminal leaves.

Bacterial leaf spot (Blight) | Poinsettia

DISEASE: Bacterial leaf spot (Blight)

HOST: Poinsettia (Euphorbia pulcherrima)

PATHOGEN: Curtobacterium flaccumfaciens pv. poinsettiae

SOURCE: APS

DISEASE: Bacterial leaf spot (Blight)

HOST: Poinsettia

Leaves with small, dark spots, an early stage of disease.

Bacterial leaf spot (Blight) | Poinsettia

DISEASE: Bacterial leaf spot (Blight)

HOST: Poinsettia (Euphorbia pulcherrima)

PATHOGEN: Curtobacterium flaccumfaciens pv. poinsettiae

SOURCE: A. Alvarez

DISEASE: Bacterial pocket

HOST: Beet

Sugar beets with many small tubercles at infection sites.

Bacterial pocket | Beet

DISEASE: Bacterial pocket

HOST: Beet (Beta vulgaris)

PATHOGEN: Xanthomonas axonopodis pv. betlicola

PATHOGEN SYNONYM: Xanthomonas campestris pv. betlicola

SOURCE: C. Schneider

DISEASE: Bacterial pustule

HOST: Soybean

Early symptoms are minute, pale green spots on young leaves. Later, small pustules form in the center of spots, best observed on underside of leaves. Spots vary in size and darken with age and lesions coalesce. Dead areas are torn away by wind.

Bacterial pustule | Soybean

DISEASE: Bacterial pustule

HOST: Soybean (Glycine max)

PATHOGEN: Xanthomonas axonopodis pv. glycines

PATHOGEN SYNONYM: Xanthomonas campestris pv. glycines

SOURCE: APS