Agriculture MCQs

Page No. 234

Fungi damage our crops by_________________?


a Producing toxic substances in plants


bDestroying green pigment of plant


cfeeding on flowers and fruits


dAbsorption of nutrients from plant tissues



Root knot disease is caused by___________________?


aFungi


bNematodes


cVirus


dBacteria


View Answer Nematodes

Pathogen is_________________?


aFungi which cause disease


bAny bacteria which causes disease


cAny virus which causes disease


dAny organism which causes disease



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


aTrachea


bSpines


cSecretion


dNervous system


View Answer Trachea

The economic injury level for white fly is________________?


a1-2 nymphs/leaf


b2-3 nymphs/leaf


c3-4 nymphs/leaf


d1 nymphs/leaf


View Answer 1-2 nymphs/leaf

Formulation or insecticides is__________________?


aDust


b EC


cGranular


dFungiments


View Answer Fungiments

The insecticides with longest residual effect belongs to___________________?


aPyrethroid


b Carbamates


cOrgano-chlorine


d Organio-phosphate


View Answer Organo-chlorine

Organo-chlorine insecticides includes___________________?


aDDT


bAldrin and Diehydrin


cAindone and Heptachlor


dAll the above


View Answer All the above

Blast disease is an international disease of________________?


aWheat


bSugarcane


cCotton


drice


View Answer rice

Gummosis is the disease of_________________?


aMango


b Guava


cCitrus (Lemon)


dnone


View Answer Citrus (Lemon)

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