| plantsdb

RESULTS

(29)

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: Lethal yellowing

HOST: Palm

Palm with dark necrotic inflorescence.

DISEASE: Lethal yellowing

HOST: Palm

Palm with close-up of diseased yellow spear leaf.

DISEASE: Lethal yellowing

HOST: Palm

Progression of lethal yellowing symptoms. Older fronds of coconut palm turn yellow, followed by yellowing of younger ones near center of crown.

DISEASE: Lethal yellowing

HOST: Palm

Coconut palm with yellowing and desiccation of leaves, late stage of disease.

DISEASE: Lethal yellowing

HOST: Palm

Palms near death, noted by yellow fronds, some that have dehisced.

DISEASE: Lethal yellowing

HOST: Palm

Lethal yellowing of palms in Florida. This image was taken shortly after initial outbreak.

DISEASE: Lethal yellowing

HOST: Palm

Myndus crudus, planthopper, a vector of the lethal yellowing phytoplasma of palms and grasses.