RESULTS

(5)

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DISEASE: Bacterial leaf spot

HOST: Snapdragon

Leaves with large necrotic areas with brownish centers and purplish margins. Lesions are slightly sunken.

Bacterial leaf spot | Snapdragon

DISEASE: Bacterial leaf spot

HOST: Snapdragon (Antirrhinum majus)

PATHOGEN: Pseudomonas syringae pv. antirrhini

SOURCE: R. Raabe

DISEASE: Bacterial stripe

HOST: Bird-of-Paradise

Bird-of-paradise with brownish black stripes along leaf veins and decay at midrib.

Bacterial stripe | Bird-of-Paradise

DISEASE: Bacterial stripe

HOST: Bird-of-Paradise (Strelitzia reginae)

PATHOGEN: Burkholderia andropogonis

PATHOGEN SYNONYM: Pseudomonas andropogonis

SOURCE: T. Makino, M. Goto

DISEASE: Bacterial wilt

HOST: Bird-of-Paradise

Bird-of-paradise with wilted and dead leaves.

Bacterial wilt | Bird-of-Paradise

DISEASE: Bacterial wilt

HOST: Bird-of-Paradise (Strelitzia reginae)

PATHOGEN: Ralstonia solanacearum

PATHOGEN SYNONYM: Pseudomonas solanacearum

SOURCE: T. Saito, M. Goto

DISEASE: Bacterial wilt

HOST: Bird-of-Paradise

Bird-of-paradise (sliced section) with rotted stele in diseased rhizome. Note discolored vascular bundles of leaf petioles.

Bacterial wilt | Bird-of-Paradise

DISEASE: Bacterial wilt

HOST: Bird-of-Paradise (Strelitzia reginae)

PATHOGEN: Ralstonia solanacearum

PATHOGEN SYNONYM: Pseudomonas solanacearum

SOURCE: T. Saito, M. Goto

DISEASE: Elm yellows

HOST: Elm

Elm yellows is characterized by witches'-brooms and stunting. Some cultivars have both yellow and reddish foliar discoloration.

Elm yellows | Elm

DISEASE: Elm yellows

HOST: Elm (Ulmus parvifolia)

PATHOGEN: 'Candidatus Phytoplasma ulmi'

PATHOGEN SYNONYM: Phytoplasma Elm yellows group

SOURCE: W. Sinclair