RESULTS

(3)

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DISEASE: Bacterial leaf spot

HOST: Pumpkin

Leaf with tan to brown, angular lesions with dark margins. They are similar to those caused by angular leaf spot.

Bacterial leaf spot | Pumpkin

DISEASE: Bacterial leaf spot

HOST: Pumpkin (Cucurbita pepo)

PATHOGEN: Xanthomonas cucurbitae

SOURCE: J. Young

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