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RESULTS

(1006)

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 (Mandarin orange)

The bacterium invades the tree slowly, leading to yellowing of the entire canopy. Pale yellow, blotchy mottled leaves are reduced in size.

DISEASE: Citrus greening (Huanglongbing)

HOST: Citrus (sp. unknown)

Citrus psyllid nymph, a vector of 'Candidatus Liberibacter asiaticus', the cause of citrus greening.

DISEASE: Citrus greening (Huanglongbing)

HOST: Citrus (Orange)

Leaves with yellowish mottle.

DISEASE: Citrus stubborn disease

HOST: Citrus (sp. unknown)

Characteristic symptoms of thickened peel at peduncle end and aborted seeds.

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.