RESULTS

(4)

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DISEASE: Bacterial brown rot

HOST: Orchid

Phalaenopsis orchid with yellowish brown spot on leaf (left), an early stage of disease.

Bacterial brown rot | Orchid

DISEASE: Bacterial brown rot

HOST: Orchid (Phalaenopsis sp.)

PATHOGEN: Acidovorax cattleyae

PATHOGEN SYNONYM: Acidovorax avenae subsp. cattleyae

SOURCE: R. McMillan

DISEASE: Bacterial brown rot

HOST: Orchid

Leaves of Phalaenopsis orchid with advanced stage of decay.

Bacterial brown rot | Orchid

DISEASE: Bacterial brown rot

HOST: Orchid (Phalaenopsis sp.)

PATHOGEN: Acidovorax cattleyae

PATHOGEN SYNONYM: Acidovorax avenae subsp. cattleyae

SOURCE: R. McMillan

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: Syringae leaf spot

HOST: Tomato

Leaves with brown necrotic lesions and chlorotic margins. Symptoms vary greatly among cultivars. Some have black or brown lesions with bright yellow, chlorotic areas and others do not have yellowing.

Syringae leaf spot | Tomato

DISEASE: Syringae leaf spot

HOST: Tomato (Lycopersicon esculentum)

PATHOGEN: Pseudomonas syringae pv. syringae

SOURCE: R. Gitaitis