RESULTS

(8)

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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: Ratoon stunt

HOST: Sugarcane

Necrotic, reddish vascular bundles in node of sliced stalk, a diagnostic symptom.

Ratoon stunt | Sugarcane

DISEASE: Ratoon stunt

HOST: Sugarcane (Saccharum officinarum)

PATHOGEN: Leifsonia xyli subsp. xyli

SOURCE: D. Teakle

DISEASE: Ratoon stunt

HOST: Sugarcane

Disease of susceptible cultivar L62-96 (right). External symptoms are characterized by stunting and poor growth.

Ratoon stunt | Sugarcane

DISEASE: Ratoon stunt

HOST: Sugarcane (Saccharum officinarum)

PATHOGEN: Leifsonia xyli subsp. xyli

SOURCE: A. Gillaspie, M. Davis

DISEASE: Ratoon stunt

HOST: Sugarcane

Red discoloration just below nodal tissues is a symptom in mature stalks of 'L41-233'.

Ratoon stunt | Sugarcane

DISEASE: Ratoon stunt

HOST: Sugarcane (Saccharum officinarum)

PATHOGEN: Leifsonia xyli subsp. xyli

SOURCE: A. Gillaspie, M. Davis

DISEASE: Ratoon stunt

HOST: Sugarcane

Row of disease 'Trojan' plants (left). Healthy row (right).

Ratoon stunt | Sugarcane

DISEASE: Ratoon stunt

HOST: Sugarcane (Saccharum officinarum 'Trojan')

PATHOGEN: Leifsonia xyli subsp. xyli

SOURCE: D. Teakle