RESULTS

(5)

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DISEASE: Gumming disease

HOST: Sugarcane

Symptoms include brownish red streaks on leaves with apical chlorosis. Streaks become necrotic with time. Plants are stunted with reddening of vascular bundles.

Gumming disease | Sugarcane

DISEASE: Gumming disease

HOST: Sugarcane (Saccharum officinarum)

PATHOGEN: Xanthomonas axonopodis pv. vasculorum

PATHOGEN SYNONYM: Xanthomonas campestris pv. vasculorum

SOURCE: APS

DISEASE: Papaya dieback

HOST: Papaya

Dieback is characterized by terminal necrosis and death of the young and old plants.

Papaya dieback | Papaya

DISEASE: Papaya dieback

HOST: Papaya (Carica papaya)

PATHOGEN: 'Candidatus Phytoplasma australiense'

PATHOGEN SYNONYM: Phytoplasma Stolbur group

SOURCE: D. Teakle

DISEASE: Papaya dieback

HOST: Papaya

Death of growing point, a symptom of the disease.

Papaya dieback | Papaya

DISEASE: Papaya dieback

HOST: Papaya (Carica papaya)

PATHOGEN: 'Candidatus Phytoplasma australiense'

PATHOGEN SYNONYM: Phytoplasma Stolbur group

SOURCE: D. Teakle

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