Lemons (Citrus limon)

Oranges (Citrus sinensis)

Citrus tristeza virus

Feeding by citrus rust mite causes the fruit to turn silvery, reddish or black.

African citrus psyllid - Characteristic bumps on the underside of sweet orange leaves caused by the feeding of the citrus psyllid (Trioza erytreae).

Red scale on orange fruit

Damage caused by armoured scales on an orange tree. Note yellowing of leaves, leaf drop, and dieback of branches,

Damage caused by armoured scales on an orange tree

Larvae of ladybird beetles (Cheilocorus sp) feeding on red scales on an orange fruit

Ladybird beetle (Cheilocorus sp) a predator of scales on citrus

Immature stages of the citrus woolly whitefly

Immature stages of blackflies on a citrus leaf

Heavy attack of young leaves by the citrus aphid

The parasitic wasp (Cales noacki) is a natural enemy imported into East Africa for control of the citrus woolly whitefly

African citrus psyllid on a citrus tree. Note bum-like galls on the upper leaf surfaces.

Immature stages of the African citrus psyllid. Note healthy nymphs (yellow) and parasitised nymphs (black)

Adult of the African citrus psyllid (Trioza erytreaea)

Damage caused by the false codling moth in a citrus fruit

Caterpillar of the false codling moth

Damage by the false codling moth. The initial symptom on the fruit is a yellowish round spot with a tiny dark centre where the caterpillar entered the fruit. In a later stage brown patches appear on the skin,

Damage by the citrus rust mite on an orange fruit

Egg laying marks by fruit flies on an orange fruit

Phaeoramularia fruit and leaf spots

Phaeoramularia fruit and leaf spots

Phytophthora-gummosis

Greening disease

Greening disease

Citrus bud mite damage

Citrus leafminer damage on a citrus leaf

Leafminer damage on a citrus tree

Mealybugs on citrus

Weaver ant nest on a citrus tree

Orange dog mature caterpillar

Orange dog moth

Orange dog moth