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RESULTS

(11)

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: Black chaff (Bacterial leaf streak)

HOST: Wheatgrass

Lesions on leaves first appear as water-soaked, translucent, long, narrow streaks. They later turn brown and necrotic and often coalesce into blighted areas.

DISEASE: Black chaff (Bacterial leaf streak)

HOST: Wheatgrass

Close-up of leaf with brown necrotic streaks.

DISEASE: Brown blotch

HOST: Mushroom

Mushrooms with rotted, brownish discoloration of infected areas.

DISEASE: Drippy gill

HOST: Mushroom

Drippy gill is characterized by small dark spots on gills with drops of bacterial ooze at the centers. Severe infection results in slimy areas and collapse of gills.