RESULTS

(5)

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DISEASE: Apple proliferation

HOST: Apple

Enlarged stipules on leaf. Witches'-brooms, rosettes, and enlarged stipules are the most reliable symptoms for identification.

Apple proliferation | Apple

DISEASE: Apple proliferation

HOST: Apple (Malus domestica 'Granny Smith')

PATHOGEN: 'Candidatus Phytoplasma mali'

PATHOGEN SYNONYM: Phytoplasma Apple proliferation group

SOURCE: M. Wolf, W. Schweigkofler

DISEASE: Aster yellows

HOST: Squash

Diagnostic characteristics for the disease are yellowing of young leaves, proliferation of secondary shoots, and rigid erect habit. Leaves are misshapen and smaller than normal and have stiff, thick laminae.

Aster yellows | Squash

DISEASE: Aster yellows

HOST: Squash (Cucurbita sp.)

PATHOGEN: 'Candidatus Phytoplasma asteris'

PATHOGEN SYNONYM: Phytoplasma Aster yellows group

SOURCE: S. Miller

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