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RESULTS

(10)

DISEASE: Citrus variegated chlorosis

HOST: Citrus (sp. unknown)

Leaf with chlorosis in interveinal spaces and brown spots visible on lower leaf surface.

DISEASE: Citrus variegated chlorosis

HOST: Citrus (sp. unknown)

Interveinal chlorosis on upper side of leaves.

DISEASE: Citrus variegated chlorosis

HOST: Citrus (sp. unknown)

Leafhopper (Oncometopia nigricans) vector of Xylella fastidiosa, which transmits citrus variegated chlorosis.

DISEASE: Citrus variegated chlorosis

HOST: Citrus (Orange)

Small, hard, diseased fruit interspersed with three normal fruits for comparison. Diseased fruit often exhibit sunburn symptoms.

DISEASE: Citrus variegated chlorosis

HOST: Citrus (Orange)

Diseased tree with sparse foliage.

DISEASE: Citrus variegated chlorosis

HOST: Citrus (Orange)

Typical symptoms of the disease are discoloration of infected leaves, brown spots on lower sides of leaves, chlorosis on upper sides, and undersized fruit (left). Healthy fruit and leaves (right).

DISEASE: Citrus variegated chlorosis

HOST: Citrus (Orange)

Severely infected tree with typical stunting and chlorosis. Symptoms may appear on only one branch of the canopy.

DISEASE: Pink disease

HOST: Pineapple

Infected pineapple slices; effect of heating (right) and not heating (left).

DISEASE: Pink disease

HOST: Pineapple

Two clones (A and D) showing different stages of infection. Second and fourth fruits (left to right) have been heated. Disease originally attributed to Gluconobacter oxydans and Enterobacter agglomerans and later to Pantoea citrea.