RESULTS

(5)

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DISEASE: Bacterial black leaf spot

HOST: Clover

White clover with brown necrotic spots.

Bacterial black leaf spot | Clover

DISEASE: Bacterial black leaf spot

HOST: Clover (Trifolium repens)

PATHOGEN: Burkholderia andropogonis

PATHOGEN SYNONYM: Pseudomonas andropogonis

SOURCE: M. Goto

DISEASE: Bacterial black leaf spot

HOST: Clover

White clover leaves with brownish spots and some yellowing occurring at the margins.

Bacterial black leaf spot | Clover

DISEASE: Bacterial black leaf spot

HOST: Clover (Trifolium repens)

PATHOGEN: Burkholderia andropogonis

PATHOGEN SYNONYM: Pseudomonas andropogonis

SOURCE: R. Gitaitis

DISEASE: Bunch disease

HOST: Walnut

Tree with advanced disease symptoms of branch and twig death.

Bunch disease | Walnut

DISEASE: Bunch disease

HOST: Walnut (Juglans microcarpa)

PATHOGEN: 'Candidatus Phytoplasma pruni'

PATHOGEN SYNONYM: Phytoplasma X-disease group

SOURCE: W. Sinclair

DISEASE: Citrus greening (Huanglongbing)

HOST: Citrus (Mandarin orange)

The bacterium invades the tree slowly, leading to yellowing of the entire canopy. Pale yellow, blotchy mottled leaves are reduced in size.

Citrus greening (Huanglongbing) | Citrus (Mandarin orange)

DISEASE: Citrus greening (Huanglongbing)

HOST: Citrus (Mandarin orange) (Citrus reticulata)

PATHOGEN: 'Candidatus Liberibacter asiaticus'

PATHOGEN SYNONYM: Candidatus Liberobacter asiaticus

SOURCE: S. M. Garnsey

DISEASE: Rugose leaf curl

HOST: Clover

Two rugose, distorted white clover leaves and a healthy leaf. Rugose leaf curl is caused by an unidentified phloem-infecting bacterium.

Rugose leaf curl | Clover

DISEASE: Rugose leaf curl

HOST: Clover (Trifolium repens)

PATHOGEN: Phloem-infecting bacterium

SOURCE: D. Teakle