Chapter 8. H. Zwölfer, M. A. Ghani, V. P. Rao. 1976. Foreign exploration and importation of natural enemies. Pages 189-207. In: C. B. Huffaker, P. S. Messenger (editors). Theory and practice of biological control. Academic Press, New York, 788 pages.

Keywords: planning and preparation of the program, accumulation and evaluation of available information, selection of target organisms and exploration areas, logistical aspect, target organisms, exploration areas, inventory research and investigations on selected species, inventory research, comparative analysis of natural control factors, effect of natural enemies, interactions among natural enemies, hyperparasites and other secondary enemies, stabilizing behavior patterns, factors other than natural enemies affecting target organism, detailed studies on selected species, reproduction capacity and impact on host, adaptation to different climates, searching ability, host selection, synchronization, genetics, importation of natural enemies, selection of agents for introduction, preparation of the material, laboratory propagation, timing of shipments, screening for parasites and diseases, shipping methods