[5] It is found in most temperate and tropical areas of the world and feeds only on cruciferous plants.

The antennae and legs are dark, and the cornicles are black at the base and yellowish towards the tips.

[6] Originally a European species, the turnip aphid is now found in most parts of the world in tropical and temperate locations.

Host plants include cabbage, cauliflower, broccoli, Brussels sprouts, kale, kohlrabi, radish and turnip, as well as shepherd's purse, wild mustard and other cruciferous weeds.

It is extremely prolific and in warm places such as Texas, a maximum of thirty-five generations per year have been recorded.