Published online by Cambridge University Press: 31 May 2012
Some recent developments on aphid digestive enzymes, aphid feeding and nutrition on host-plants, and on artificial media are briefly reviewed. A chemically defined diet, on which pea aphid life and reproduction can be sustained during two successive generations, is described. An important feature of this successful chemical diet concerns its amino acid composition, which was based on that of pea aphid blood and honeydew. An artificial feeding method for aphids divorced from their host-plants should prove a valuable tool in the study of the nutritional requirements and the intermediary metabolism of these insects, as well as in determining the influence of dietary constituents on polymorphism and in relation to the phenomena of plant resistance to aphids.