RESULTS

(4)

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DISEASE: Bacterial stem rot

HOST: Poinsettia

Water-soaked and rotted stem and leaf tissues.

Bacterial stem rot | Poinsettia

DISEASE: Bacterial stem rot

HOST: Poinsettia (Euphorbia pulcherrima)

PATHOGEN: Dickeya dadantii

PATHOGEN SYNONYM: Erwinia chrysanthemi

SOURCE: M. Daughtrey

DISEASE: Bacterial stem rot

HOST: Poinsettia

The disease causes translucence, discoloration, and rot of stems.

Bacterial stem rot | Poinsettia

DISEASE: Bacterial stem rot

HOST: Poinsettia (Euphorbia pulcherrima)

PATHOGEN: Dickeya dadantii

PATHOGEN SYNONYM: Erwinia chrysanthemi

SOURCE: M. Daughtrey

DISEASE: European stone fruit yellows

HOST: Almond

The disease causes yellowing and rolling of leaves (right). Leaves become thick and rough in texture. Healthy leaves (left).

European stone fruit yellows | Almond

DISEASE: European stone fruit yellows

HOST: Almond (Prunus dulcis)

PATHOGEN: 'Candidatus Phytoplasma prunorum'

PATHOGEN SYNONYM: Phytoplasma Apple proliferation group

SOURCE: E. Seemueller

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