RESULTS

(6)

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DISEASE: Elm leaf scorch

HOST: Elm

Diseased tree with scorch at leaf margins.

Elm leaf scorch | Elm

DISEASE: Elm leaf scorch

HOST: Elm (Ulmus americana)

PATHOGEN: Xylella fastidiosa

SOURCE: J. Sherald, M. Shurtleff

DISEASE: Elm leaf scorch

HOST: Elm

Severely diseased tree with dieback and scorched leaves.

Elm leaf scorch | Elm

DISEASE: Elm leaf scorch

HOST: Elm (Ulmus americana)

PATHOGEN: Xylella fastidiosa

SOURCE: W. Sinclair

DISEASE: Oleander leaf scorch

HOST: Oleander

Diseased plant with scalloped, yellowish leaves. This usually is followed by dieback of twigs and branches. Plants often die 2 years after infection.

Oleander leaf scorch | Oleander

DISEASE: Oleander leaf scorch

HOST: Oleander (Nerium oleander)

PATHOGEN: Xylella fastidiosa

SOURCE: S. Purcell

DISEASE: Oleander leaf scorch

HOST: Oleander

Oleander with symptoms of severe scorch.

Oleander leaf scorch | Oleander

DISEASE: Oleander leaf scorch

HOST: Oleander (Nerium oleander)

PATHOGEN: Xylella fastidiosa

SOURCE: M. Blua

DISEASE: Oleander leaf scorch

HOST: Oleander

Oleander with scorch symptoms primarily at leaf tips, an early stage of disease.

Oleander leaf scorch | Oleander

DISEASE: Oleander leaf scorch

HOST: Oleander (Nerium oleander)

PATHOGEN: Xylella fastidiosa

SOURCE: M. Blua

DISEASE: X-disease (Peach yellow leaf roll)

HOST: Peach

Peach twig with yellow, curled (rolled) leaves.

X-disease (Peach yellow leaf roll) | Peach

DISEASE: X-disease (Peach yellow leaf roll)

HOST: Peach (Prunus persica)

PATHOGEN: 'Candidatus Phytoplasma mali'

PATHOGEN SYNONYM: Phytoplasma Apple proliferation group

SOURCE: W. Sinclair