MZO-09 {ZX}e : ¶h анZ nМ "A

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MZO-09

December - Examination 2018 M.Sc. Zoology (Final) Examination

Entomology-II Paper - MZO-09

Time : 3 Hours ] [ Max. Marks :- 80

Note: The question paper is divided into three sections A, B and C.

Write answers as per the given instructions.

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Section - A 8 × 2 = 16 (Very Short Answer Questions)

Note: Answer all questions. As per the nature of the question delimit your answer in one word, one sentence or maximum up to 30 words. Each question carries 2 marks.

IÊS> - "A' (A{V bKw CÎmar¶ àíZ)

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861

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MZO-09 / 800 / 5 (2) (Contd.)

1) (i) What is the source of Nereistoxin?

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(ii) Give the structure of Lindane.

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(iii) Write the name of two botanicals.

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(iv) Define LT₅₀.

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(v) Name two detoxifying enzymes.

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(vi) When NEPA (National Environmental Policy Act) came into force?

NEPA H$~ bmJy hþAm?

(vii) Zoological name of Migratory locust is ______ and Desert locust is _______.

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(viii) Where in Rajasthan the locust warning organisation located?

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Section - B 4 × 8 = 32 (Short Answer Questions)

Note: Answer any four questions. Each answer should not exceed 200 words. Each question carries 8 marks.

(IÊS> - ~) (bKw CÎmar¶ àíZ)

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2) Describe the biology, nature of damage and control of castor hairy caterpillar.

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3) Explain the life cycle, nature of damage and control measures of wheat aphid.

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4) Enumerate one pest of sugarcane studied by you.

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5) Comment upon the distribution, host, description, life cycle, nature of damage, medical importance and control of housefly.

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MZO-09 / 800 / 5 (4) (Contd.)

6) Write short notes on : (i) Bee keeping

(ii) Insect as Biocontrol agent of weeds.

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(i) ‘Yw‘³Ir nmbZ

(ii) IanVdma Ho$ O¡d {Z¶§ÌU ‘| H$sQ>&

7) What are the problems of Lac growers? Explain.

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8) Many insects exhibit “social behaviour.” Justify.

9) Explain the following:

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(i) Insecticides Act, 1968 H$sQ>ZmeH$ A{Y{Z¶‘, 1968

(ii) Plant Quarantine, 2002 nmXn g§JamoYZ, 2002

Section - C 2 × 16 = 32 (Long Answer Questions)

Note: Answer any two questions. You have to delimit your each answer maximum up to 500 words. Each question carries 16 marks.

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10) How and why insect attain pest status? Find out the important prophylactic, cultural and physical practices for pest management.

11) Biocontrol can be applied or natural, how? Explain.

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12) Comment upon use of technology for predicting, forecasting pest attack and identification.

13) IPM minimizes economic damage as well as causes less harm to the environment. Justify.