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Here I am providing you madras university Bachelor of Science (BSc) Botany previous year question paper……… Question Papers of Bachelor of Science (BSc) Botany Q.Draw Diagrams wherever necessary 1.Pest 2. Quarantine 3. Vector 4. Alternate host 5. Hand sprayer 6. Bordeaus mixture 7. Mercuric chloride 8. Virus 9. Cultural methods of protection 10. Bacillus thuringiensis 11. Seed dressing drum 12. DDT 13. How viral diseases are transmitted? 14. Give a classification of pesticides based on their mode of action 15. What is meant by residual effect? 16. How plant diseases can be prevented? 17. Mention the control measures for Cotton wilt? 18. What are the symptoms of the disease Bunchy Top? Which crop is affected by it? 19. Mention any three organophosphorous pesticides and their role in crop protection. 20. Explain the symptoms, etiology and the control measures of the disease Red rot of Sugarcane 21. Write an essay on domestic and international quarantine 22. Mention any four types of plant protection appliances and their mode of action 23. Write an essay on the act passed by the parliament for plant protection 24. Give a general account of types of plant diseases 25. Which crops are affected by the disease Damping off? Mention the causative agent. What are the symptoms and control measures?
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