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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI 600 034
B.Sc.DEGREE EXAMINATION PLANT BIOLOGY AND PLANT BIOTECHNOLOGY
SECONDSEMESTER APRIL 2018
17/16UZO2AL01- AGRICULTURAL ENTOMOLOGY
Date: 28-04-2018 Dept. No. Max. 100 Marks
Time: 01:00-04:00
PART A 2 x 10 20 Marks
I Answer ALL the questions.
1. Comment on heart rot disease?
2. What is a light trap?
3. Comment on micrometry.
4. What is an earthen cocoon?
5. What is a contact poison?
6. What is a fumigant?
7. Comment on stable fly.
8. Write note on chandriki.
9. Draw labeled diagram of mouth parts in house fly.
10. Give the names of any two cotton pests (scientific names)
PART B 4 x 10 40 Marks
II Answer any FOUR of the following
11. What are the different types of mouth parts in insects?
12. Give the reasons of insects attaining pest status.
13. Comment on stored pests of rice.
14. Write about any two pests of coconut and their prophylaxis.
15. Write about any two pests of sugarcane and their prophylaxis.
16. Give the lifecycle of Locusts and their control measures.
PART C 2 x 20 40 Marks
III Answer any TWO of the following
17. Write an essay on Integrated Pest Management.
18. Give the classification of the class Insecta.
19. Write an essay on sericulture.
20. Describe any two cotton pests.

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