RESULTS

(7)

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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: Bacterial leaf streak

HOST: Ti

Leaf with reddish brown necrotic streaks, late stage of disease.

Bacterial leaf streak | Ti

DISEASE: Bacterial leaf streak

HOST: Ti (Cordyline terminalis)

PATHOGEN: Xanthomonas axonopodis pv. dieffenbachiae

PATHOGEN SYNONYM: Xanthomonas campestris pv. dieffenbachiae

SOURCE: A. Alvarez

DISEASE: Bacterial leaf streak

HOST: Ti

Leaves of two different ti cultivars with water-soaked and necrotic streaks.

Bacterial leaf streak | Ti

DISEASE: Bacterial leaf streak

HOST: Ti (Cordyline terminalis)

PATHOGEN: Xanthomonas axonopodis pv. dieffenbachiae

PATHOGEN SYNONYM: Xanthomonas campestris pv. dieffenbachiae

SOURCE: R. Raabe

DISEASE: X-disease (Eastern X)

HOST: Chokecherry

Shot-hole stage of X-disease.

X-disease (Eastern X) | Chokecherry

DISEASE: X-disease (Eastern X)

HOST: Chokecherry (Prunus virginiana)

PATHOGEN: 'Candidatus Phytoplasma pruni'

PATHOGEN SYNONYM: Phytoplasma X-disease group

SOURCE: W. Sinclair

DISEASE: X-disease (Eastern X)

HOST: Chokecherry

X-disease causes rosettes and premature loss of leaves.

X-disease (Eastern X) | Chokecherry

DISEASE: X-disease (Eastern X)

HOST: Chokecherry (Prunus virginiana)

PATHOGEN: 'Candidatus Phytoplasma pruni'

PATHOGEN SYNONYM: Phytoplasma X-disease group

SOURCE: W. Sinclair

DISEASE: X-disease (Eastern X)

HOST: Chokecherry

Chokecherry with stunted shoots, red leaves, and rosettes.

X-disease (Eastern X) | Chokecherry

DISEASE: X-disease (Eastern X)

HOST: Chokecherry (Prunus virginiana)

PATHOGEN: 'Candidatus Phytoplasma pruni'

PATHOGEN SYNONYM: Phytoplasma X-disease group

SOURCE: W. Sinclair

DISEASE: X-disease (Eastern X)

HOST: Chokecherry

Chokecherry with red leaves, rosettes, and bud loss.

X-disease (Eastern X) | Chokecherry

DISEASE: X-disease (Eastern X)

HOST: Chokecherry (Prunus virginiana)

PATHOGEN: 'Candidatus Phytoplasma pruni'

PATHOGEN SYNONYM: Phytoplasma X-disease group

SOURCE: W. Sinclair