Waage, J.K., & Greathead, D.J. 1986 . Insect Parasitoids. Academic Press London 389 pp.

Notes: [13th Symposium of the Royal Entomological Society of London 18-19 September 1985 at the Department of Physics Lecture Theatre, Imperial College, London.] Three papers include information about scales: The genetic and coevolutionary interactions beween parasitoids and their hosts (Bouletreau), Parasitoids in classical biological control (Greathead) and Enhancing parasitoid activity in crops (Powell).