Notes on East African Aphids III-Aphids of Cruciferous Crops

Abstract

Only two aphids are known to be specific on Cruciferous crops in East Africa. They are the Cabbage Aphid, Brevieoryne brassiere (L.) which is covered with grey wax dust in life, and Lipaphis pseudo brassiere (Davis), a greenAphid sometimes called the False Cabbage Aphid. The relative size and shape of the siphunculi and cauda may also distinguish the two species. In microscope preparations brassiere shows a dorsal abdominal pattern of transverse black bars which is absent in pseudo brassiere.