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Host Plant Resistance and innovative approaches in pest control TVP

Total questions: 52

Worksheet time: 26mins

Name
Class
Date
1.

Father of host plant resistance is

a)

Rnippling

b)

Snodgrass

c)

Hagstrum

d)

R. H. Painter

2.

The earliest documented case of insect resistance is against

a)

Wheat stem sawfly

b)

Hessian fly

c)

Sorghum shoot fly

d)

Screw worm fly

3.

The non - preference plant resistance to insects is also known as

a)

Antibiosis

b)

Antixenosis

c)

Tolerance

d)

Host evasion

4.

The pest which occurs in an isolated condition is

a)

Sporadic pest

b)

Regular pest

c)

Key pest

d)

Occasional pest

5.

The pest which is restricted to particular locality

a)

Sporadic pest

b)

Regular pest

c)

Endemic pest

d)

Key pest

6.

An important major pest species in the complex of pests attacking a crop

a)

Sporadic pest

b)

Regular pest

c)

Endemic pest

d)

Key pest

7.

Pest which occurs regularly and in serious manner is known as

a)

Sporadic

b)

Pandemic

c)

Endemic

d)

Epidemic

8.

Which of the following is a kairomone ?

a)

Excitants

b)

Attractants

c)

Both (a) and (b)

d)

Repellents

9.

Which of the following is an allomone ?

a)

Repellents

b)

Attractants

c)

Excitants

d)

All the above

10.

A type of apparent host plant resistance in which a particular plant condition or environmental state makes a plant more resistant to pests than under other circumstances

a)

Acquired resistance

b)

Permanent resistance

c)

Horizontal resistance

d)

Induced resistance

11.

Host plant resistance in which the plant passes through a susceptible stage quickly is

a)

Host escape

b)

Host tolerant

c)

Host resistance

d)

Host evasion

12.

Population capable of damaging and surviving on plants previously known to be resistant to other populations of the same species

a)

Biotype

b)

Biospecies

c)

Biotic agents

d)

None of the above

13.

The occurrence of asparagines in minute quantities was considered to be the primary cause of resistance to brown plant hopper in rice variety

a)

GEB24

b)

IR 26

c)

TNI

d)

Mudgo

14.

Yellow sticky trap is used for attracting

a)

Aphids

b)

Leaf miners

c)

Scale insects

d)

Mealy bugs

15.

Aflatoxin is produced by

a)

Bacillus

b)

Aspergillus

c)

Fusarium

d)

Pythium

16.

A phenomenon where a species is characterized by low reproductive rate and high survival rate is called

a)

k - strategist

b)

r - strategist

c)

q - strategist

d)

None of the above

17.

Use of resistant varieties in the IPM is an example of

a)

Biological control

b)

Chemical control

c)

Cultural control

d)

Generic control

18.

Major gene resistance is also called

a)

Horizontal

b)

Oligogenic resistance

c)

Vertical resistance

d)

Induced resistance

19.

The type of resistance is effective against certain specific biotypes of the insect but not others

a)

Vertical resistance

b)

Specific resistance

c)

Both (a) and (b)

d)

Horizontal resistance

20.

DIMBOA is considered to be resistance factor against European corn borer in

a)

First generation

b)

Second generation

c)

Third generation

d)

Fourth generation

21.

A multiple insect and disease resistant variety which is grown on more than 11 million ha in the world is

a)

IR6

b)

IR16

c)

IR26

d)

IR36

22.

Theory of chemosensory bases of host selection was proposed by

a)

Dethier

b)

Morgan

c)

Hagstrum

d)

R. H. Painter

23.

A substance released by a non living material which is favourable to a receiving organism but detrimental to an organism of another species that is found in or on the non living material is known as

a)

Kairomone

b)

Pheromone

c)

Synomone

d)

Aneumone

24.

Use of light traps for the management of pest is an example of

a)

Mechanical control

b)

Chemical control

c)

Cultural control

d)

Biological control

25.

The correct sequence in host plant selection process in phytophagous insects is

a)

Host habitat finding - Host finding - Host recognition – Host acceptance - Host suitability

b)

Host habitat finding - Host finding - Host acceptance – Host recognition - Host suitability

c)

Host habitat finding - Host finding - Host recognition – Host suitability - Host acceptance

d)

None of the above

26.

The nutrition value of the plant and absence of toxic compound help in the process of

a)

Host finding

b)

Host recognition

c)

Host acceptance

d)

Host suitability

27.

Which of the following is a type of Ecological Resistance ?

a)

Host evasion

b)

Induced resistance

c)

Escape

d)

All the above

28.

A plant may pass through the most susceptible stage quickly or at time when insect number is less is called

a)

Host evasion

b)

Induced resistance

c)

Escape

d)

All the above

29.

Increase in resistance temporarily as result of some change conditions of plant or environment

a)

Host evasion

b)

Induced resistance

c)

Escape

d)

All the above

30.

The type of mechanism in which adverse effect of the host plant on the biology of the insects

a)

Antixenosis

b)

Antibiosis

c)

Tolerance

d)

All the above

31.

Horizontal resistance is governed by

a)

Single gene

b)

Few genes

c)

Many genes

d)

All the above

32.

Which one of the following is a strategy to overcome development of biotypes?

a)

Pyramiding of major genes

b)

Incorporation of horizontal resistance

c)

Breeding tolerant varieties that exert no selection pressure on the insect

d)

All the above

33.

The number of biotypes in rice brown plant hopper is

a)

5

b)

6

c)

7

d)

8

34.

The number of biotypes in rice gall midge is

a)

12

b)

13

c)

10

d)

8

35.

Maximum number of insect biotypes is observed in

a)

Brown plant hopper

b)

Gall midge

c)

Hessian fly

d)

Pea aphid

36.

Maximum number of insect biotypes is observed in the insect group

a)

Aphids

b)

Whiteflies

c)

Midges

d)

Hoppers

37.

The occurrence of benzyl alcohol in minute quantities in barley was considered to be the primary cause of resistance to

a)

Green bug

b)

Aphids

c)

Borer

d)

None of the above

38.

Which one of the following is an advantage of host plant resistance ?

a)

Specificity

b)

Compatibility

c)

Decreases pesticide application

d)

All the above

39.

Which one the following is limitation of host plant resistance ?

a)

Time consuming

b)

Genetic limitations

c)

Biotype development

d)

All the above

40.

Which of the following is repellent to mosquitoes ?

a)

DEET

b)

Oil of citronella

c)

Dimethyl phthalate

d)

All the above

41.

Which of the following is a chitin synthesis inhibitor ?

a)

Buprofezin

b)

Teflubenzuron

c)

Flufenoxuron

d)

All of these

42.

The term "Third Generation Pesticides" refers to

a)

Moulting hormones

b)

Anti moulting hormones

c)

Juvenile hormones

d)

Anti juvenile hormones

43.

Which of the following is juvenile hormone analog ?

a)

Hydroprene

b)

Juvabione

c)

Methoprene

d)

All of these

44.

Pheromones used for the following purpose requires no registration

a)

Monitoring

b)

Mass trapping

c)

Mating disruption

d)

Both (a) and (b)

45.

In which of the following insects species males produce pheromone?

a)

Red palm weevil

b)

Banana corm weevil

c)

Cotton boll weevil

d)

All the above

46.

Which of the following is used for mating disruption of pink bollworm of cotton ?

a)

P. B. Rope-L

b)

PG Rope - L

c)

HL-Rope

d)

HP - Rope 536

47.

The following pheromone is used for mating disruption technique

a)

HL Rope

b)

HP Rope

c)

PB Rope L

d)

All the above

48.

The type of pheromone in red palm weevil, Rhynchophouous ferrugineus is

a)

Sex pheromone

b)

Aggregation pheromone

c)

Trail marking pheromone

d)

Alarm pheromone

49.

Which of the following tool is / are used to measure the behaviour of insect towards the odour source ?

a)

Wind tunnel

b)

Y olfacto meter

c)

Both a and b

d)

None of the above

50.

In which of the following insects species males produce pheromone ?

a)

Trichoplusia ni

b)

Danaus gilippus

c)

Ceratitis capitata

d)

All the above

51.

Which of the following is a chemosterilant ?

a)

TEPA

b)

METEPA

c)

Thio-TEPA

d)

All the above

52.

A chemical which give adaptive advantage to the receiver but not to the emitter is

a)

Pheromone

b)

Kairomone

c)

Synomone

d)

Apneumone