RESULTS

(7)

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DISEASE: Bacterial leaf scorch

HOST: Pecan

Pecan with necrotic scorched leaves with distinct dark lines between healthy and diseased tissues.

Bacterial leaf scorch | Pecan

DISEASE: Bacterial leaf scorch

HOST: Pecan (Carya illinoinensis)

PATHOGEN: Xylella fastidiosa

SOURCE: T. Brenneman

DISEASE: Bacterial leaf scorch

HOST: Sycamore

Sycamore with scorched leaves and dieback of small branches.

Bacterial leaf scorch | Sycamore

DISEASE: Bacterial leaf scorch

HOST: Sycamore (Platanus occidentalis)

PATHOGEN: Xylella fastidiosa

SOURCE: W. Sinclair

DISEASE: Bacterial leaf scorch

HOST: Sycamore

Close-up of scorched leaves.

Bacterial leaf scorch | Sycamore

DISEASE: Bacterial leaf scorch

HOST: Sycamore (Platanus occidentalis)

PATHOGEN: Xylella fastidiosa

SOURCE: W. Sinclair

DISEASE: Bacterial leaf spot (Bacterial necrosis)

HOST: Cassava

Cassava with yellowish leaves and water-soaked, angular spots. The disease is primarily on foliage, although the pathogen may invade stem buds and young branches.

Bacterial leaf spot (Bacterial necrosis) | Cassava

DISEASE: Bacterial leaf spot (Bacterial necrosis)

HOST: Cassava (Manihot esculenta)

PATHOGEN: Xanthomonas cassavae

PATHOGEN SYNONYM: Xanthomonas campestris pv. cassavae

SOURCE: APS

DISEASE: Bacterial leaf spot (Bacterial necrosis)

HOST: Cassava

Cassava with brownish lesions and blackish edges. Leaves turn yellow with multiple infection sites.

Bacterial leaf spot (Bacterial necrosis) | Cassava

DISEASE: Bacterial leaf spot (Bacterial necrosis)

HOST: Cassava (Manihot esculenta)

PATHOGEN: Xanthomonas cassavae

PATHOGEN SYNONYM: Xanthomonas campestris pv. cassavae

SOURCE: H. Maraite, A. Alvarez

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