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Worksheets18AG2023 (Pests of crops, stored grains and their management)
Total questions: 20
Worksheet time: 20mins
Name
Class
Date
1.
Ring like scarred area encircling the citrus stalk and irregular mottled patches on rind is a symptom of ------
a)
Thrips
b)
Whitefly
c)
Psyllid
d)
Aphid
2.
Grubs bore into the rhizome causing death of unopened pipe, withering of outer leaves in banana is due to
a)
Cosmopolites sordidus
b)
Sternocheatus mangiferae
c)
Bactrocera dorsalis
d)
Odoiporus longicollis
3.
Shot holes on grapevine leaves is a symptom of -------
a)
Flea beetle
b)
stem girdler
c)
Thrips
d)
Stem weevil
4.
In sapota the leaves webbed together in a bunch by larvae and reduced to a network of veins is a symptom caused by
a)
Chickoo moth
b)
Budworm
c)
Fruit fly
d)
Hairy caterpillar
5.
Example for Secondary storage pest
a)
Saw toothed grain beetle
b)
Angoumois grain moth
c)
Rice weevil
d)
Drug store beetle
6.
Scientific Name of San jose Scale
a)
Quadraspidiotus perniciosus
b)
Eriosoma lanigerum
c)
Icerya purchasi
d)
Cydia pomonella
7.
Adults and nymphs causing necrotic lesions on guava fruit
a)
Tea mosquito bug
b)
Fruit fly
c)
Whitefly
d)
Anar butterfly
8.
Scientific name of pomegranate fruit borer
a)
Duodorix isocrates
b)
Conogethes punctiferalis
c)
Aleurodicus dispersus
d)
Indarbela tetraonis
9.
Rosette shaped bloom of cotton is caused by:
a)
Pink bollworm
b)
American bollworm
c)
Spiny bollworm
d)
Spotted bollworm
10.
A pest of cruciferous crops, that bites holes in leaves causing serious damage
a)
Plutella xylostella
b)
Aphis craccivora
c)
Dysdercus cingulatus
d)
Dicladispa armigera
11.
Silver shoot’ symptom in rice is due to the attack of :
a)
Gall midge
b)
Stem borer
c)
Leaf folder
d)
Case worm
12.
A disease transmitted by hoppers in gingelly is :
a)
Phyllody
b)
Leaf curl
c)
Yellow mosaic
d)
Wilting
13.
The trap used for the control of sorghum shoot fly
a)
TNAU fishmeal trap
b)
Pheromone trap
c)
Light trap
d)
Sticky trap
14.
Presence of boreholes with fresh excreta in the nodal region of sugarcane and reddening of affected tissues is due to :
a)
Internode borer
b)
Top shoot borer
c)
Early shoot borer
d)
Leafhopper
15.
Alternate wetting and drying of paddy fields is adopted for the management of :
a)
Brown Plant Hopper
b)
Leaf folder
c)
Grasshopper
d)
Stem borer
16.
_________ is the scientific name of sunflower capitulum borer
a)
Helicoverpa armigera
b)
Spodoptera litura
c)
Dolycoris indicus
d)
Spilosoma obliqua
17.
---------- sucks the sap from developing seeds in open bolls and stains the lint black
a)
Dusky cotton bug
b)
Red cotton bug
c)
Pink boll worm
d)
Spotted boll worm
18.
Presence o f circular pin head sized bore holes on processed tobacco is the typical symptom of
a)
Cigarette beetle
b)
Saw toothed beetle
c)
Pulse beetle
d)
Khapra beetle
19.
Scientific name of jasmine bud worm
a)
Hendecasis duplifascialis
b)
Elasmopalpus jasminophagus
c)
Aceria jasmine
d)
Spodoptera litura
20.
Cardamom itch’ is caused by
a)
Sciothrips cardamomi
b)
Scirtothrips dorsalis
c)
Thrips tabaci
d)
Helicoverpa armigera
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