Chapter 3. M. J. Way. 1968. Intra-specific mechanisms with special referenced to aphid populations. Pages 18-36. In: T. R. E. Southwood (editor). Insect Abundance. Proceedings of a meeting held 21-22 September 1967 at the Imperial College, London, Symposium No. 4, Royal Entomological Society of London, Bartholomew Press, Dorking, Surrey, Great Britain, 160 pages.

Keywords: multiplication of Aphis fabae on Vicia faba, multiplication rates of A. fabae populations developing from different numbers of initial apterae on V. fabae kept in field cages to prevent

interference by natural enemies, mean numbers of A. fabae per plant plotted against the percentages of aphids in ‘optimum sized’ and ‘overcrowded’ populations, proportions of different forms of A. fabae during the development and disappearance of spring populations, multiplication of aggregates of Brevicoryne brassicae in relation to density on Euoymus eruopaeus, field studies