LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – ZOOLOGY

TS 14

FIFTH SEMESTER – APRIL 2006

                                                    ZO 5504 – ECONOMIC ENTOMOLOGY

(Also equivalent to ZOO 516)

 

 

Date & Time : 27-04-2006/1.00-4.00 P.M.   Dept. No.                                                       Max. : 100 Marks

 

 

PART – A

Answer ALL the questions.  Each question carries TWO marks.     (10 ´ 2 = 20)

1. What is Lac?
2. Comment on Antifeedants.
3. Name any four household insect pests.
4. What is stifling?
5. Comment on stone weevil.
6. What is head maggot?
7. Comment on white grubs.
8. Comment on fruit sucking moth.
9. What are pheromone traps?
10. Expand: ICAR & ETL.

PART – B

Answer any FOUR questions.  Each question carries TEN marks.   (4 ´ 10 = 40)

1. Describe the procedure involved in dry mount of insects.
2. How mosquitoes are harmful to man? Justify.
3. Give an outline classification of the class Insecta.
4. Describe the life cycle of rhinoceros beetle and its control.
5. Give an account on locusts and their control.
6. Describe any three insect pests of stored products and their control.

PART – C

Answer any TWO questions.  Each question carries TWENTY marks.    (2 ´ 20 = 40)

1. Give  an account of Apiculture.
2. Write an essay on biological control of insect pests.
3. Give a detailed account on insecticides.
4. Write short notes on:

1. Red hairy caterpillar and its control.
2. IPM with reference to insect pests of rice.

 

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