| plantsdb

RESULTS

(9)

DISEASE: Australian citrus dieback

HOST: Citrus (Lime)

Severe decline, a late stage of disease. The disease spreads slowly in mature trees, progressing faster in young trees.

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 leaf spot and blight

HOST: Fern

Leaf with small lesions that coalesced into large, reddish brown necrotic area.

DISEASE: Bacterial leaf spot

HOST: Fern

Fronds with diseased tips.

DISEASE: Bacterial leaf spot

HOST: Fern

Leaf with large, dark, longitudinal necrotic areas that differ from symptoms normally described for this disease.

DISEASE: Bacterial leaf spot

HOST: Fern

Frond with brown necrotic spots.

DISEASE: Citrus canker

HOST: Citrus (Lemon)

Lower leaf with raised, corkylike lesions surrounded by dark brown halos, one of the diagnostic symptoms of citrus canker.

DISEASE: Witches'-broom

HOST: Citrus (Lime)

Lime tree with compact, small leaves (witches'-broom). Leaves on older brooms dry out and eventually drop, leaving dead, bare branches. There are no flowers or fruit on brooms.