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RESULTS

(20)

DISEASE: Citrus greening (Huanglongbing)

HOST: Citrus (Orange)

Mature, misshapen diseased fruit. Healthy fruit (lower left).

DISEASE: Citrus greening (Huanglongbing)

HOST: Citrus (Orange)

Distorted fruit and aborted seeds, another symptom of the disease.

DISEASE: Citrus greening (Huanglongbing)

HOST: Citrus (Orange)

Leaves with yellowish mottle.

DISEASE: Citrus stubborn disease

HOST: Citrus (Orange)

Severely stunted sweet orange tree. Foliage is dense and abnormally upright. Leaves may be cupped and unusually thick. They also may be chlorotic and mottled.

DISEASE: Citrus stubborn disease

HOST: Citrus (Orange)

Fruit from a diseased tree are frequently lopsided or acorn-shaped, usually few and small. They may not color at stem end.

DISEASE: Citrus stubborn disease

HOST: Citrus (Orange)

Sweet orange exhibiting off-season flowering and crop heterogeneity. Diseased trees generally have shoots with shortened internodes, which lead to rosettes with cupped leaves.

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).