CONTENTS: 1. Plant pathology laboratory. 2. Maintenance of laboratory. 3. Laboratory equipments. 4. Microscopy. 5. Sterilization techniques. 6. Preparation of standard solutions, distilled and deionized water. 7. Preparation of culture media. 8. Isolation and purification of fungi and bacteria. 9. Micrometry and spore traps. 10. Staining in plant pathology. 11. Screening of fungicides and biocontrol agents. 12. Screening techniques for fungal diseases. 13. Screening techniques for bacterial diseases 14. Virus transmission. 15. Methodology for field and pot culture experiments. 16. Plant disease assessment. 17. Isolation and purification of biocontrol agents. 18. Development of bioformulations. 19. Preservation of specimens. 20. Electrophoresis. 21. Polymerase chain reaction. 22. Immuno assays. 23. Cross protection. 24. Calculation of fungicide dosage. 25. Plant protection measures. 26. Mushroom cultivation.