Résumé : Sommaire : 1. Introduction. 2. Mineral or inorganic substances. 3. Toxic gases and vapours. 4. Organic compounds (drugs). 5. Organic compounds (pesticides). 6. Organic compounds (miscellaneous). 7. Poisonous plants. 8. Mycotoxins. 9. Venomous bites and stings, doping. 10. Radio-active materials. Appendices : 1. General references. 2. Effect of pesticides and herbicides on honey bees. 3. Plant species associated with teratogenic effects, infertility and abortions. 4. Carcinogenesis