RESULTS

(5)

FILTER

DISEASE: Bacterial hyperplastic canker

HOST: Almond

Diseased tree with multiple cankers. Margins of cankers are rough, soft, cheesy, dark brown, and have scalloped water-soaked spots that turn brown. Multiple cankers may girdle and kill small twigs.

Bacterial hyperplastic canker | Almond

DISEASE: Bacterial hyperplastic canker

HOST: Almond (Prunus dulcis)

PATHOGEN: Pseudomonas amygdali

SOURCE: P. Psallidas

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: Halo blight

HOST: Rice

Leaves with yellowish brown lesions, 2 to 10 mm in diameter. Lesions are surrounded by distinct halos. Later, brown spots or stripes may develop in the center.

Halo blight | Rice

DISEASE: Halo blight

HOST: Rice (Oryza sativa)

PATHOGEN: Pseudomonas syringae pv. oryzae

SOURCE: H. Kuwata