1. Biological control of aphids, in Aphids, their biology, natural enemies and control, Vol C, ed by and Elsevier, Amsterdam, pp 141-165 (1989).
2. and Biological control, in Aphids as crop pests, ed by and CABI Publishing, Wallingford (in press).
3. Enhancing parasitoid activity in crops, in Insect parasitoids, ed by and 13th Symposium of the Royal Entomological Society of London, Academic Press, London, pp 319-340 (1986).
4. Understanding and Manipulating Plant Attributes to Enhance Biological Control
5. Habitat Management to Conserve Natural Enemies of Arthropod Pests in Agriculture