1. Biopesticides Based on Phytochemicals 2. Phytochemicals and Insect Cell Culture Bioassays 3. Role of Microsomal Monooxygenases in Phytochemical/Insect Interactions 4. Phytochemical Actions at Amino Acid Chemosensory Receptors: An Approach to Biopesticides 5. Phytochemicals as Insect Behaviour Modifiers 6. Transgenic Plants Expressing Enzyme Inhibitors and the Prospect for Biopesticide Development 7. Role of Phytochemicals in Integrated Pest Management 8. Potential Uses of Phytochemical Pesticides in Deciduous Temperate Fruit Crops 9. Prospects and Problems in Phytochemical Biopesticides