RESULTS

(5)

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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 blight (Black leaf blight)

HOST: Canna

Canna with blighted shoots and leaves.

Bacterial blight (Black leaf blight) | Canna

DISEASE: Bacterial blight (Black leaf blight)

HOST: Canna (Canna indica)

PATHOGEN: Xanthomonas campestris pv. cannae

SOURCE: D. Shoenweiss, M. Shurtleff

DISEASE: Citrus canker

HOST: Citrus (sp. unknown)

Fruit with brown, corky lesions.

Citrus canker | Citrus (sp. unknown)

DISEASE: Citrus canker

HOST: Citrus (sp. unknown) (Citrus natsudaidai)

PATHOGEN: Xanthomonas citri subsp. citri

PATHOGEN SYNONYM: Xanthomonas citri

SOURCE: M. Goto

DISEASE: Citrus canker

HOST: Citrus (sp. unknown)

Leaf with corky lesions. Note absence of halos.

Citrus canker | Citrus (sp. unknown)

DISEASE: Citrus canker

HOST: Citrus (sp. unknown) (Citrus natsudaidai)

PATHOGEN: Xanthomonas citri subsp. citri

PATHOGEN SYNONYM: Xanthomonas citri

SOURCE: M. Goto

DISEASE: Citrus canker

HOST: Citrus (sp. unknown)

Twig with corky lesions.

Citrus canker | Citrus (sp. unknown)

DISEASE: Citrus canker

HOST: Citrus (sp. unknown) (Citrus natsudaidai)

PATHOGEN: Xanthomonas citri subsp. citri

PATHOGEN SYNONYM: Xanthomonas citri

SOURCE: M. Goto