M.Sc. (Semester II) (CBCS) Examination Oct/Nov-2017
Agrochemicals And Pest Management
ECONOMIC ENTOMOLOGY
Day Date: Wednesday, 22-11-2017 Max. Marks: 70
Time: 10.30 AM to 01.00 PM
Instructions: All Questions are Compulsory.
All Questions carry equal marks.
Solve any two Questions from Section-II
Solve any two Questions from Section-III
Q.1 Choose correct answer from options given below. 14
Filaria causes due to mosquito.
Male Anopheles Female Anopheles
Female Culex Male Aedes
Scientific name of Rice weevil is
Sitophilus oryzal Periplaneta Americana
Cimex lectularius Musca domestica
is sucking pest.
Mealy bug Nematode
Silver fish Helicoverpa borer
Wild boar having great sense of
Chewing Biting
Smell Hearing
insect swarms and cover over 1000 kms distance.
Locust Termite
Snail Thrips
is the victor of Loa-Loa.
Khapra beetle Horse fly
Rat Sand fly
Digger wasp belongs to
Aleyrodoidae Buprecidae
Cimicidae Moridae
Chemicals used to control rat are known as
Pesticides Insecticides
Sprayers Rodenticides
Patches found on flowers due to pest
Mite Housefly
Spiraling white fly Pulse bettle
10) Meloidogyne Spp. Is called as
Root knot nematode Seed gall nematode
Cyst nematode Flower nematode
11) Insects are belonging to phylum
Mollusca Arthropoda
Nematode Chordate
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SLR-MA-8
12) is the characteristic of Lawn web worm.
Formation of sooty mold Formation of runner mass
Formation of gall Nematode
13) crop is damaged by Limax spp.
Wheat Garden Plants
Coconut Apple
14) The blood off insect is called as
Haemolymph White corpuscles
Hemoglobin Leucocytes
Section II
Q.2 Describe life cycle stages of cockroach. 14
Describe reproduction pattern in Grasshopper with suitable diagram.
Q.3 Explain snail as a mollusean pest of agricultural crops. 14
Describe different control measures on stored grain pest.
Q.4 Describe seed gall nematode. 14
Describe importance of study of pest.
Section III
Q.5 Describe the nature of damages caused by culex mosquito. 05
Explain damages caused by House Sparrow. 05
Describe use of Trichogramma in rice field. 04
Q.6 Describe nature of damages of pulse beetle. 05
Explain control measures of mealy bug. 05
Write morphological peculiarities of rat. 04
Q.7 Discuss specific feeding characters and Control measures of root borers. 05
Draw life cycle diagram of Helicorerpa borer. 05
Describe the damages caused by House fly. 04