Contents: 1. Pathogens and Diseases. 2. Fungi. 3. Viruses. 4. Bacteria. 5. Control : Host Resistance. 6. Control : Chemicals. 7. Control : Spray Application. 8. Control : Plant Health Regulation. 9. Control : Cultural and Biological Methods. 10. Control : Post-Harvest Pathogens. Host Index. Micro-organism and Disease Index. General Index.