Agriculture MCQs

Page No. 234

Fungi damage our crops by_________________?


a Producing toxic substances in plants

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bDestroying green pigment of plant

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cfeeding on flowers and fruits

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dAbsorption of nutrients from plant tissues

✓



Root knot disease is caused by___________________?


aFungi

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bNematodes

✓


cVirus

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dBacteria

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View Answer Nematodes

Pathogen is_________________?


aFungi which cause disease

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bAny bacteria which causes disease

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cAny virus which causes disease

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dAny organism which causes disease

✓



The entrance point for air in insects are known as _________________?


aTrachea

✓


bSpines

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cSecretion

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dNervous system

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View Answer Trachea

The economic injury level for white fly is________________?


a1-2 nymphs/leaf

✓


b2-3 nymphs/leaf

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c3-4 nymphs/leaf

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d1 nymphs/leaf

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View Answer 1-2 nymphs/leaf

Formulation or insecticides is__________________?


aDust

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b EC

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cGranular

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dFungiments

✓


View Answer Fungiments

The insecticides with longest residual effect belongs to___________________?


aPyrethroid

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b Carbamates

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cOrgano-chlorine

✓


d Organio-phosphate

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View Answer Organo-chlorine

Organo-chlorine insecticides includes___________________?


aDDT

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bAldrin and Diehydrin

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cAindone and Heptachlor

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dAll the above

✓


View Answer All the above

Blast disease is an international disease of________________?


aWheat

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bSugarcane

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cCotton

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drice

✓


View Answer rice

Gummosis is the disease of_________________?


aMango

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b Guava

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cCitrus (Lemon)

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dnone

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View Answer Citrus (Lemon)

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