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IBPS Agricultural Field Officer Study Material - Entomology

 Major pest & Disease of Rice, Wheat, Cotton, Chick pea, Sugarcane & their Management


  • Rice stem borer (Scirpophaga incertutas) is -Monophagous
  • Trichogramna is a n Egg parasitoid
  • Silver shoot or onion leaf is caused by  Gall midge
  • Vector of Rice tungro is - Green leaf hopper (Nephotettise spp.)
  • Vector of Grassy stunt disease  - Brown plant hopper (Nilaparvata spp.)
  • Chaffy grains with black spot is due to - Gundhi bug (leptocoris spp.)
  • Family of Gundhi bug is   -      Alydidae
  • Gundhi bug caused on the stage -  Milking stage
  • Ufra disease of rice is due to    -       Ditylenehus angustus
  • White grub is a - Bettle, Polyphages
  • Serious pest of wheat -White grub & termite
  • Ear cockle nematode is  -Anguina tritici
  • Tundu/yellow ear rot disease is due to - Anguina tritici + Carynebacterium tritici
  • Control of tundu disease is done by hot water treatment at Hot water treatment 500C for 2 hours.      
  • Wheat stem borer sesamia inferns attack in  -Night
  • Name of rice yellow stem borer - Scirpophaga incertuls
  • Highest consumption of pesticide in crop    Cotton (54%)
  • Hooper burn in cotton is due to -        Amrasca biguttula
  • Family of cotton white fly - Aleyrodidae
  • Vector for cotton leaf curl virus is  - Bemisia tabaci
  • Glaring of squares in cotton is due to - Spotted bollworm (Earias vitella)
  • Rosetting of flowers due to - Pink bollworm (Pectinophora gossypiella)
  • Double seed formation is due to -         Pink bollworm
  • Large circular bore holes with faecal pellets is the symptoms of  -American bollworm (Helicoverpa armigera)
  • Dysdercus cingulatus is known as  - Red cotton bug
  • Bt formulation is used for - Early instars of bollworms
  • Helicoverpa and Agrotisypsilon is the serous pest of  - Chickpea
  • Greasy cut worm attack in  - Night
  • Scientific name of Sugarcane shoot borer is  - Chilo infuscatellus
  • Bunchy top appearance in sugarcane is due to  - Top borer (Scirpophaga excerptaels)

  • Family of Top borer  - Pryalidae
  • Pyrilla perpusilla (Fam. Lophopidae) is a  - Leaf hopper
  • Biological control of borers  -    Trichograma Japonicun
  • Distractive insect pest (DIP) Act was passed in the year  - 1914

  • Insecticide act passed -  1968
  • Pest occurs most frequently on cultivated crops - Regular pest
  • Pest occurs in a few isolated localities is known as -    Sporadic pest
  • Pest occurs in same area of year after year  -     Endemic pest
  • Pest occurs in area in severe form  -      Epidemic pest
  • Central plant protection training institute  -        Hyderabad
  • Safest insecticide for honeybee -           Endosulphohn
  • Pest population should be kept below Economic threshold level
  • Serious pest of Rice is  -       Yellow stem borer

  • What is the sequence of coating of seed by insect fungicide & Rhizobium  -   Fungicide + Insecticide + Rhizobium
  • Family of shoot borer  - Crambidae

More Entomology Onemarks for IBPS SO - Agricultural Officer Preparation - Click here

General Agricultural  Onemarks - Chick Here

IBPS SO Professional Knowledge one mark questions - Click here
IBPS SO Professional Knowledge Study Materials - Click here
IBPS SO Prelims Study Materials - Click here


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