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RESULTS

(13)

DISEASE: Bacterial blast and black pit

HOST: Citrus (Lemon)

The term "black pit" refers to black lesions on fruit, which may be specks or large, sunken pits as seen here. They also may be light tan, later becoming reddish brown to black.

DISEASE: Bacterial blast and black pit

HOST: Citrus (Lime)

Characteristic symptoms of brownish black lesions on twigs and leaves (blast), starting with infection of petioles. Black pit refers to brown to black sunken spots on fruit, 5 to 20 mm in diameter.

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.