CONTENTS:  1. Introduction; 2. Genetics of Plant Disease; 3. Tactics of Attack Among Pathogens; 4. Defense Tactics Among Plants; 5. Effect of Environment on Disease Development; 6. Epidemiology, Assessment and Forecasting of Plant Diseases; 7. Methods of Plant Disease Control; 8. Mechanisms of Biological Control; 9. Non-Parasitic Diseases Caused by Environmental Factors; 10. Diseases Caused by Bacteria and Mollicutes; 11. Phytopathogenic Fungi and Fungal-like Organisms; 12. Diseases Caused by Fungal-like Organisms; 13. Diseases Caused by Chytridiomycota and Zygomycota; 14. Diseases Caused by Ascomycota; 15. Diseases Caused by Deuteromycetes; 16. Diseases Caused by Basidiomycota; 17. Diseases Caused by Viruses and Viroids; 18. Diseases Caused by Nematodes and Protozoa; 19. Diseases Caused by Flowering Plants and Green Algae; Appendix : Biological Control of Insects and Weeds; Glossary; Suggested Readings; Index