RESULTS

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DISEASE: Bacterial leaf spot of chard

HOST: Chard

Chard leaves with necrotic spots.

Bacterial leaf spot of chard | Chard

DISEASE: Bacterial leaf spot of chard

HOST: Chard (Beta vulgaris subsp. cicla)

PATHOGEN: Pseudomonas syringae pv. aptata

PATHOGEN SYNONYM: Pseudomonas aptata

SOURCE: P. Brown

DISEASE: Bacterial leaf spot of chard

HOST: Chard

Chard with necrotic, irregular leaf spots.

Bacterial leaf spot of chard | Chard

DISEASE: Bacterial leaf spot of chard

HOST: Chard (Beta vulgaris subsp. cicla)

PATHOGEN: Pseudomonas syringae pv. aptata

PATHOGEN SYNONYM: Pseudomonas aptata

SOURCE: P. Brown

DISEASE: Phony disease (Phony peach)

HOST: Peach

Tree with characteristic reduced growth. Foliage is dark green, then turns yellowish. Twigs become brittle and branches die back. Fruit are small.

Phony disease (Phony peach) | Peach

DISEASE: Phony disease (Phony peach)

HOST: Peach (Prunus persica)

PATHOGEN: Xylella fastidiosa

SOURCE: P. C. Anderson

DISEASE: Phony disease (Phony peach)

HOST: Peach

Twigs on diseased trees have shortened internodes and increased lateral branching.

Phony disease (Phony peach) | Peach

DISEASE: Phony disease (Phony peach)

HOST: Peach (Prunus persica)

PATHOGEN: Xylella fastidiosa

SOURCE: M. Davis

DISEASE: Western wetwood

HOST: Elm

Spokelike, discolored extensions that expanded into sapwood, following an injection with a fungicide. The causal agent is not known but symptoms are associated with bacteria and yeast.

Western wetwood | Elm

DISEASE: Western wetwood

HOST: Elm (Ulmus americana)

PATHOGEN: Causal agent unknown

SOURCE: W. Sinclair