Introduction : biochemical approaches to understanding agricultural pests / M.F. Claridge -- Biochemical systematics : principles and perspectives for pest management / S.B.J. Menken and L.E.L. Raijmann -- Combined use of biochemical, immunological and molecular assays for infection, species identification and resistance detection in field populations of Anopheles (Diptera: Culicidae) / J. Hemingway [and others] -- Studies of interactions between alfalfa weevil strains, Wolbachia endosymbionts and parasitoids / T.H. Hsiao -- Biochemical approaches to the study of ecological genetics : the role of selection and gene flow in the evolution of insecticide resistance / J.C. Daly and S. Trowell -- A molecular and ecological investigation of the large arionid slugs of north-west Europe : the potential for new pests / L.R. Noble and C.S. Jones -- Systematics of brown planthopper and related species using nuclear and mitochondrial DNA / P.L. Jones, P. Gacesa and R.K. Butlin -- Application of novel molecular markers (DNA) in agricultural entomology / H.D. Loxdale, C.P. Brookes and P.J. de Barro -- Location of resistance to Brevicoryne brassicae in wild brassica species / R.A. Cole and T. Fenning -- The use of DNA markers in population genetics and ecological studies of the desert locust Schistocerca gregaria (Orthoptera: Acrididae) / D-X. Zhang and G.M. Hewitt -- The use of DNA analysis and the polymerase chain reaction in the study of introduced pests in New Zealand / K.F. Armstrong and S.D. Wratten -- Serological analysis of arthropod predation : past, present and future / M.H. Greenstone -- Serological diagnosis of parasitism : a monoclonal antibody-based immunodot assay for Microplitis croceipes(Hymenoptera: Braconidae) / M.K. Stuart and M.H. Greenstone -- Polyclonal, monoclonal and engineered antibodies to investigate the role of predation in slug population dynamics / W.O.C. Symondson and J.E. Liddell -- The potential of combinatorial antibody libraries in pest-predator relationship studies / J.E. Liddell and W.O.C. Symondson -- Serological analysis of predators of Helicoverpa armigera Hèubner (Lepidoptera: Noctuidae) eggs in sorghum-pigeonpea intercropping at ICRISAT, India : a preliminary field study / L. Sigsgaard -- Using gut content immunoassays to evaluate predaceous biological control agents : a case study / J.R. Hagler and S.E. Naranjo -- An environmental risk assessment for release of an exotic microsporidium for European corn borer control in North America / D.W. ragsdale and C.T. Oien -- Progress in quantifying predation using antibody techniques / K.D. Sunderland -- Electrophoretic approaches to predator-prey interactions / M.G. Solomon, J.D. Fitzgerald and R.A. Murray -- Genetics of esterases in laboratory and feral cotton boll weevils, Anthonomus grandis Boheman / C.J. Biggers [and others] -- Practical applications for techniques to determine the nutritional state and age of field caught tsetse flies / P.A. Langley.