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RESULTS

(9)

DISEASE: Bacterial wilt

HOST: Custard apple

Custard apple with brown discoloration of vascular system, typical of wilt disease.

DISEASE: Bacterial wilt

HOST: Custard apple

Sudden death stage of wilt disease.

DISEASE: Bacterial wilt

HOST: Custard apple

Custard apple with brown, dead root tissues with necrotic speckles at the margin between healthy and diseased tissues.

DISEASE: Bacterial wilt

HOST: Ginger

Blackening of pith and cortex of rhizome.

DISEASE: Bacterial wilt

HOST: Ginger

Field of wilted ginger plants.

DISEASE: Bacterial wilt

HOST: Ginger

Ginger plants with yellowing, marginal necrosis, and downward curling of infected leaves, in contrast to darker, fully expanded healthy leaves.

DISEASE: Bacterial wilt

HOST: Ginger

Cupping and leaf necrosis precedes wilt and death of plants.

DISEASE: Bacterial wilt

HOST: Ginger

Typical symptoms of bacterial wilt in ginger plantations, Kerala, India.

DISEASE: Bacterial wilt

HOST: Squash

Field with severe symptoms of wilt. Foliage often is chlorotic and leaf margins may be chlorotic and necrotic before plant death. Bacterial ooze may be seen streaming from the xylem when infected stems are cut.