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Crop pest and their management

Total questions: 98

Worksheet time: 49mins

Name
Class
Date
1.

Which one of the following is a monophagous pest of rice ?

a)

Yellow stem borer

b)

Leaf folder

c)

Case worm

d)

Gundhi bug

2.

Dead heart and white ear in rice is caused by

a)

Dicladispa armigera

b)

Cnapholocris medinalis

c)

Nympula deptinctalis

d)

Scirphophaga incertulus

3.

Silver shoot in paddy is a characteristic symptom of

a)

Scirphophaga incertulus

b)

Cnapholocris medinalis

c)

Nympula deptinctalis

d)

Orseolia oryzae

4.

The white parallel streaks along the leaf axis in rice leaves is due to

a)

Scirphophaga incertulus

b)

Cnapholocris medinalis

c)

Nympula deptinctalis

d)

Dicladispa armigera

5.

Cut leaf bit floating in water is characteristic symptom of

a)

Leaf hopper

b)

Leaf folder

c)

Case worm

d)

Gall midge

6.

Marginal rolling in rice seedlings is damage symptom of

a)

Rice thrips

b)

Leaf folder

c)

Case worm

d)

Gall midge

7.

Individual rice grains become white- and chaffy due to the attack of

a)

Rice gundhi bug

b)

Rice blue beetle

c)

Rice grass hopper

d)

Plant hopper

8.

Increased silica content affects the mandibular development of

a)

Leaf hopper

b)

Leaf folder

c)

Case worm

d)

Gall midge

9.

Which one of the following is not correctly matched ?

a)

Infected leaves turn brown - Green plant hopper

b)

Nibbling of rice ear head - Grass hopper

c)

Buggy odour in rice during milky stage - Gundhi bug

d)

Cut leaf bit floating in water - Blue beetle

10.

Alternate wetting and drying of paddy fields is done for the management of

a)

Yellow stem borer

b)

Rice leaf folder

c)

Brown plant hopper

d)

Rice case worm

11.

Alley cropping is cultural practice for the management of

a)

Brown plant hopper

b)

Yellow stem borer

c)

Rice leaf folder

d)

Rice case worm

12.

Passing of rope over the crop helps to manage

a)

Rice case worm

b)

Brown plant hopper

c)

Green leafhopper

d)

Rice leaf folder

13.

In rice, clipping of tip seedlings before transplanting is done to eliminate egg masses of

a)

Leaf folder

b)

Case worm

c)

Yellow stem borer

d)

Leaf hopper

14.

Crytorhinus lividipennis is natural enemy of

a)

Yellow stem borer

b)

Brown plant hopper

c)

Leaf folder

d)

Gall midge

15.

Platygaster oryzae is a larval parasitoid of

a)

Gall midge

b)

Brown plant hopper

c)

Yellow stem borer

d)

Leaf folder

16.

Release of egg parasitoid Trichogramma japonicum is done for the management of

a)

Yellow stem borer

b)

Brown plant hopper

c)

Gall midge

d)

Leaf folder

17.

In paddy, the elongation of leaf sheath, when infested by gall midge is due to a chemical known as

a)

Cecimogen

b)

Ceciden

c)

Cecidogen

d)

Orseolin

18.

Yellow stem borer hibernates as

a)

Egg

b)

Larva

c)

Pupa

d)

None of these

19.

In sorghum, dead hearts with more side tiller is characteristic symptom of

a)

Shoot fly

b)

Stem borer

c)

Sorghum midge

d)

Ear head bug

20.

The holes at the base of sorghum. peduncle are due to

a)

Contarinia sorghicola

b)

Atherigona soccata

c)

Chilo partellus

d)

Calocoris angustata

21.

Which of the following is not correctly matched ?

a)

Ear head bug - Chaffy ness

b)

Stem borer - Pinholes on the whorl

c)

Sorghum midge - Maggots feed on ovary

d)

Shoot bug - Reddening of midrib

22.

Which of the following is not correctly matched ?

a)

Dead heart, reddening of sorghum midrib - Sorghum stem borer

b)

Pupa case protruding in between glumes - Midge

c)

Reddening of lower leaves with silken web - Sorghum mite

d)

Chaffy ness - Army worm

23.

The shoot fly females lay white, elongated, cigar-shaped eggs singly on

a)

The undersurface of the leaves, parallel to the midrib

b)

Upper surface of the leaves

c)

Stem

d)

Flowers

24.

Which of the following is used for the management of shoot fly in sorghum ?

a)

Early sowing

b)

High seed rate and fish meal trap

c)

Application of granular insecticides in whorls

d)

All of these

25.

Which insect feeds on silk and developing cobs of maize ?

a)

Helicoverpa armigera

b)

Mythmina separata

c)

Chilo zonellus

d)

None of the above

26.

Which of the following is a pest of wheat ?

a)

Root aphid

b)

Termites

c)

Stem borer

d)

All of these

27.

Dead heart in the wheat central shoot is a caused by

a)

Stem borer

b)

Root borer

c)

Root aphid

d)

None of the above

28.

Presence of large number of ants at the base of the finger millet plant is characteristic symptom of

a)

Ragi root aphid

b)

Stem borer

c)

Termite

d)

None of the above

29.

Dead heart and chaffy ear head in ragi is caused due to

a)

Ragi root aphid

b)

Stem borer

c)

Termite

d)

None of the above

30.

Which of the following is not correctly matched ?

a)

Circular bore holes - Gram pod borer

b)

Pin head sized bore hole - Podfly

c)

Irregular bore hole - Plumemoth

d)

Shriveled seeds inside the pulse pods - Blister beetle

31.

Groundnut bruchid attacks

a)

Kernels

b)

Pods

c)

Both (a) and (b)

d)

None of the above

32.

Pin head sized bore hole near the septum and shriveling of developing pulse seeds is caused by

a)

Gram pod borer

b)

Pod fly

c)

Plume moth

d)

Pod bug

33.

Which of the following is not correctly matched ?

a)

Flowers partially eaten - Blister beetle

b)

Webbing of flower inflorescence - Spotted pod borer

c)

Irregular / round leaf mine on pulse leaves - Pod fly

d)

Shriveled seeds inside the pulse pods - Pod bug

34.

In gram, circular bore holes on pods plugged by the head of a larva is related with

a)

Plume moth

b)

Red gram pod fly

c)

Cow bugs

d)

Gram pod borer

35.

The pest which attack both in field' and storage of pulses to

a)

Pod borer

b)

Pod fly

c)

Pulse beetle

d)

Spotted borer

36.

The noctuid which is common pest to both pigeonpea and chickpea is

a)

Pod Sy

b)

Erais vitella

c)

Helicoverpa armigera

d)

Plume moth

37.

Which of the following is not correctly matched regarding damage symptom in groundnut ?

a)

Total defoliation in groundnut - Red hairy caterpillar

b)

Webbing and drying of terminal leaf lets in groundnut - Groundnut leaf miner

c)

Yellowing and drying of terminal leaflet in groundnut - Spodoptera litura

d)

Wilting of groundnut plants in patches with damaged roots - White grub

38.

Wilting of groundnut plants in patches with damaged roots is caused by

a)

Leaf miner

b)

Termites

c)

All the above

d)

White grub

39.

White grub beetles lay eggs

a)

On the upperside of the leaf

b)

Singly in loose soil up to the depth of 10 cm

c)

Near the root at the level of ground

d)

Within the floral parts

40.

Webbing of leaves in groundnut is a characteristic symptom of

a)

Leaf miner

b)

Thrips

c)

Leafhoppers

d)

None of the above

41.

In groundnut, typical 'V shaped yellowing at the tip of the leaf lets is caused by

a)

Leaf miner

b)

Thrips

c)

Leafhoppers

d)

None of the above

42.

Groundnut leaf miner pupates in

a)

Soil

b)

Between the webbed leaf lets

c)

Flower

d)

None of the above

43.

Scarification of groundnut pods is caused by

a)

Earwig

b)

Termites

c)

Blind ant

d)

All the above

44.

The mustard saw fly lays eggs near

a)

Leaf margin

b)

Roots

c)

Stem

d)

Flower

45.

Mustard sawfly pupates in

a)

Soil

b)

Leaves

c)

Stem

d)

None of these

46.

Curly leaf tip with poor pod set in mustard is characteristic symptom of

a)

Aphid

b)

Cut worm

c)

Leafhopper

d)

Saw fly

47.

Circular bore hole in the boll plugged by the head of a larva is characteristic symptom of

a)

Pink boll worm

b)

American boll worm

c)

Spotted boll worm

d)

Spiny boll worm

48.

Flared squares in cotton is caused by

a)

Spodoptera litura

b)

Helicoverpa armigera

c)

Pectinophora gossypiella

d)

Earias vitella

49.

The boll worm which covers the opening once it enters into the boll is

a)

Pink boll worm

b)

American boll worm

c)

Spotted boll worm

d)

None of the above

50.

Marginal downward rolling cupping, yellowing, browning, bronzing and drying of cotton leaves is characteristic symptom of

a)

Whitefly

b)

Cotton leaf hopper

c)

Boll worms

d)

Red cotton bug

51.

Larvae of pink bollworm overwinter in

a)

Seed

b)

Stem

c)

Soil

d)

None of these

52.

The bacteria responsible for staining of the cotton fiber is

a)

Bacillus gossypii

b)

Azatobactor sp

c)

Nematospora gossypii

d)

None of the above

53.

Which of the following is not correctly matched ?

a)

Drooping shoots and flared squares in cotton - Spotted boll worm

b)

Gall like swelling near the collar region of cotton - Stem weevil

c)

Rosette bloom in cotton - American bollworm

d)

Marginal downward rolling, cupping and yellowing of cotton leaves - Leaf hopper

54.

Retardation in lint development in cotton is caused by

a)

American bollworm

b)

Spotted bollworm

c)

Pink bollworm

d)

Red cotton bug

55.

Staining of lint in cotton is caused by

a)

American bollworm

b)

Spotted bollworm

c)

Pink bollworm

d)

Red cotton bug

56.

Red cotton bug lays eggs on / in

a)

Soil

b)

Upper side of Leaf

c)

Bolls

d)

Floral parts

57.

Bunchy top appearance in grown up sugarcane due to formation of side shoots is a characteristic symptom of

a)

Top shoot borer

b)

Early shoot borer

c)

Inter nodal borer

d)

All of these

58.

Stripping of sugarcane leaves minimizes the attack of

a)

Early shoot borer

b)

Mealy bugs

c)

Top shoot borer

d)

Scale insect

59.

Which of the following is not correctly matched regarding the damage symptom of sugarcane ?

a)

Dead hearts - Early shoot borer

b)

Bore holes on internodes - Inter nodal borer

c)

Bunchy top - Top borer

d)

Sugarcane setts filled with soil - Leafhopper

60.

Sugarcane setts filled with soil is characteristic symptom of

a)

Shoot borer

b)

Termites

c)

Scale insect

d)

Wooly aphid

61.

Sugarcane root borer, Emmalocera depresella attacks

a)

Roots

b)

Shoot

c)

Leaves

d)

Flowers

62.

Shriveling and drying of sugarcanes with reduced internodes is caused by

a)

Shoot borer

b)

Termites

c)

Wooly aphid

d)

Scale insect

63.

Only bruchid which attacks groundnut in storage is

a)

Callosobruchus maculatus

b)

Callosobruchus minutus

c)

Caryedon serratus

d)

None of the above

64.

Geometrical cutting on coconut fronds is due to

a)

Rhinoceros beetle

b)

Red palm weevil

c)

Mites

d)

Black headed caterpillar

65.

Gummosis and crown topping in coconut is characteristic symptom of

a)

Rhinoceros beetle

b)

Red palm weevil

c)

Mites

d)

Black headed caterpillar

66.

Which of the following is not correctly matched ?

a)

Dried leaflets with gallery in older coconut fronds - Black headed caterpillar

b)

White speckling on upper surface of coconut leaves : Lacewing bug

c)

Yellowing of coconut leaves in patches - Scale

d)

Shot holes on coconut trunk - Mites

67.

In coconut, stem / root injection technique is used to for the management of

a)

Rhinoceros beetle

b)

Red palm weevil

c)

Mites

d)

Black headed caterpillar

68.

Mines on leaves and bore holes on tender shoot and tubers in potato are caused by

a)

Cut worm

b)

Potato tuber moth

c)

Aphid

d)

Beetle

69.

Which pest of potato attacks the tuber both in field and storage ?

a)

Cut worm

b)

Potato tuber moth

c)

Mealy bug

d)

Potato aphid

70.

Which of the following is not correctly matched ?

a)

Bore holes on bhendi fruits - Fruit borer

b)

Bore holes on sweet potato tuber in field and storage - Sweet potato weevil

c)

Mining and skeletanization of brinjal - Hadda beetle

d)

Notching of brinjal leaves - Fruit borer

71.

Notching of brinjal leaves is caused by feeding of

a)

Stem borer

b)

Fruit borer

c)

Ash weevil

d)

Hadda beetle

72.

Mining and skeltanization of cabbage leaves is caused by

a)

Diamond back moth

b)

Leaf webber

c)

Borer

d)

Semi looper

73.

Release of larval parasitoid, Cotesia plutella is to reduce the damage of the following pest ?

a)

Diamond back moth

b)

Leaf webber

c)

Borer

d)

Semi looper

74.

Irregular holes on cucurbit leaves is damage symptom of

a)

Fruit flies

b)

Flea beetle

c)

Red pumpkin beetle

d)

None of the above

75.

Upwardly curling chilli leaves with rat tail like leaf tip is due to attack of

a)

Thrips

b)

Mites

c)

Scales

d)

Leafhoppers

76.

Which one of the following is serious pest of onion and garlic ?

a)

Thrips

b)

Leafhopper

c)

Mealy bug

d)

Bulb borer

77.

Pollu beetle is major pest of

a)

Cardamom

b)

Beetle vine

c)

Pepper

d)

Cashew

78.

Skeletanization of tobacco leaves is caused by

a)

Tobacco caterpillar

b)

Leafhopper

c)

Aphids

d)

Leaf miner

79.

Which of the following is a monophagous pest of mango ?

a)

Red ant

b)

Hopper

c)

Nut weevil

d)

Stem borer

80.

'T' shaped marking on marble sized mango fruits is characteristic symptom of

a)

Red ant

b)

Hopper

c)

Nut weevil

d)

Stem borer

81.

Which of the following is not correctly matched regarding damage symptom in mango ?

a)

'T' shaped marking on marble sized mango fruits - Mealy bugs

b)

Drying of inflorescence and shedding of flowers - Mango hopper

c)

Webbing mango leaves with petiole intact - Red ant

d)

Bore hole an mango stem with protrusion of frass - Stem borer

82.

Crease painting in mango trees is done to control

a)

Nut weevil

b)

Leaf hopper

c)

Mealy bugs

d)

Fruit fly

83.

Which of the following is not correctly matched regarding the damage symptom of guava ?

a)

Corky out growth or scab formation - Tea mosquito

b)

Leaves fall off and twigs dry up - Scale insect

c)

Yellowing of leaves and development of sooty mould - Spiralling white fly

d)

Yellowing of leaves - Fruit borer

84.

Drying and withering of terminal shoot in citrus with the presence of large number of ants is due to the attack of

a)

Citrus psyllid

b)

Fruit fly

c)

Fruit sucking moth

d)

Butterfly

85.

Shedding of citrus fruits with feeding punctures is a damage symptom of

a)

Fruit fly

b)

Butterfly

c)

Fruit sucking moth

d)

Leaf miner

86.

Which of the following is not correctly matched regarding the damage symptom of citrus ?

a)

Galleries are formed inside the stem - Citrus shoot and bark borer

b)

Defoliation in citrus - Citrus butterfly

c)

Rotting of citrus fruits with legless larva inside - Citrus psylla

d)

Zig zag leafmines in citrus leaves - Citrus leaf miner

87.

In pomegranate, bagging of fruits with polythene cover is done to avoid damage from

a)

Fruit fly

b)

Fruit borer

c)

Shoot hole borer

d)

Fruit sucking moth

88.

In apple, infested region on bark turns into pink colour and pink colour encrustation on apple fruit is a characteristic symptom of

a)

Wooly aphid

b)

San Jose scale

c)

Stem borer

d)

None of the above

89.

Ashy coat on apple stem with galled roots is due to

a)

Wooly aphid

b)

San Jose scale

c)

Stem borer

d)

None of the above

90.

Which of the following is not correctly matched regarding the damage symptom of grapes ?

a)

Shot holes on terminal leaves of grapes - Grapevine flea beetle

b)

Sticky, shrivelled grapevine berries with sooty mould - Mealy bug

c)

Corky out growth on grapevine berries - Berry thrips

d)

Spiral cut on the grapevine stem - Stem borer

91.

Spiral cut on the grapevine stem is the damage caused by

a)

Stem gridler

b)

Flea beetle

c)

Stem borer

d)

Mealy bug

92.

In beetlevine, yellowing of leaves with grey coloured armoured scale covering them is due to

a)

Betlevine scale

b)

Mites

c)

Leafhoppers

d)

Thrips

93.

Which one of the following pest is an introduced pest of coffee ?

a)

Green bug

b)

Berry borer

c)

Stem borer

d)

Mealy bug

94.

Henosepilachna vigintioctopunctata is a pest of

a)

Potato

b)

Brinjal

c)

Both a and b

d)

None of the above

95.

Most destructive polyphagous insect is

a)

Locust

b)

Mealybugs

c)

Whitefly

d)

Stem borer

96.

Flooding of the fields will help in control of

a)

White grubs

b)

Termites

c)

Nematodes

d)

All of these

97.

Pesticide is suitable for controlling, the white grubs

a)

Quinalphos

b)

Chlorpyriphos

c)

Phorate

d)

All of the above

98.

Chemical that is commonly used as a pesticide against slugs and snails

a)

Chlorpyriphos

b)

Kelthane

c)

Aldicarb

d)

Metaldehyde

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