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RESULTS

(9)

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: Bacterial brown spot

HOST: Bean

Bean with water-soaked and necrotic lesions on pods and leaves.

DISEASE: Bacterial brown spot

HOST: Bean

Common bean with necrotic lesions on upper and lower surfaces of leaves. Lesions often are surrounded by bright yellow zones (not shown).

DISEASE: Bacterial brown spot

HOST: Bean

Leaves of common bean with shot-holes, a late stage of disease.

DISEASE: Bacterial brown spot

HOST: Bean

Leaves of dwarf bean exhibiting late stage of disease.

DISEASE: Bacterial brown spot

HOST: Mallotus

Leaf with small, rustylike lesions.

DISEASE: Bacterial brown spot

HOST: Mallotus

Leaf with tiny, light brown spots surrounded by chlorotic zones.

DISEASE: Marginal leaf blight

HOST: Lettuce

Marginal leaf blight first appears as slimy wilting of leaf margins. Small, reddish lesions may be seen on leaf blades. Infected tissues turn brown to black in time.