Entomology Multiple Choice Questions and Answers: Agriculture Competitive/Entrance Exams

Entomology Multiple Choice Objective Questions are very important for all major competitive Exams. It is a very important branch of agriculture. All major entrance exams such as JRF, SRF, NET, CET and RAS include MCQ’s from Entomology.

Larvae: Lemon Butterfly

NOTE: This page is updated every Monday (Morning). Number of questions in each update – 1 to 10.

Last Updated: 28/10/2019, at 08:06 am IST.

Number of Questions Added: #55-56.


Entomology Multiple Choice Objective Questions

Question – #1. Which is not a natural predator of BPH?

(a). Spiders.
(b). Mirid bugs.
(c). Red ants.
(d). All of the above.

See Answer

Question – #2. Grassy stunt virus disease is caused by?

(a). BPH.
(b). Green leafhoppers.
(c). White rice leafhoppers.
(d). Zig-zag leafhoppers.

See Answer

Question – #3. The vector of ‘Orange leaf’ disease in rice is?

(a). Zig-zag leafhoppers.
(b). Pink stem borer.
(c). Pink ants.
(d). Pale-headed stripe borer.

See Answer

Question – #4. The virus disease tungro is associated with?

(a). BPH.
(b). White backed planthopper.
(c). Green leafhoppers.
(d). Rice blue leafhoppers.

See Answer

Question – #5. Trichogramma japonicum is used mainly as bio-control agent of which insect in rice?

(a). Rice caseworm.
(b). Rice leaf-folder.
(c). Pink stem borer.
(d). BPH.

See Answer

Question – #6. Which is the scientific name and family of BPH?

(a). Nilaparvata lugens, Delphacidae.
(b). Sogafera furcifera, Delphacidae.
(c). N. virescens, Cicadellidae
(d). Cofana spectra, Cicadellidae..

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Question – #7. Which stage of BPH causes damage to paddy crop?

(a). Only adults.
(b). Only nymphs.
(c). Both a and b.
(d). Only male.

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Question – #8. The ETL for BPH is?

(a). 5-10 insects per hill.
(b). 2-3 insects per hill.
(c). 1 insect per hill.
(d). 10-15 insects per hill.

See Answer

Question – #9. Proper management practice for BPH is?

(a). Wider spacing, alternate drying of field, making alleys.
(b). Closer spacing, regular drying of field.
(c). Either a or b.
(d). Late sowing of rice.

See Answer

Question – #10. Hopper burn is a plant damage symptom which is caused by?

(a). Sogatella furcifera.
(b). Nilaparvata lugens.
(c). Nephotettix virescens.
(d). Chodana spectra.

See Answer

Question – #11. The egg of Painted bug is parasitized by?

(a). Grayon sp.
(b). Alophora sp.
(c). Trichogramma.
(d). All of the above.

See Answer

Question – #12. Which insect transfers the virus of rossette disease in groundnut?

(a). Groundnut leaf miner.
(b). White grub.
(c). Thrips.
(d). Groundnut aphid.

See Answer

Question – #13. Which is a insect vector of clover phyllody?

(a). Aphrodes albifrons.
(b). Graminella nigrifrons.
(c). Macrosteles cristata.
(d). All of the above.

See Answer

Question – #14. What is the scientific name of insect vector which carries phytoplasma of BLL?

(a). Stephanitis typica.
(b). Cestius phycitis.
(c). Recilia dorsalis.
(d). Non of the above.

See Answer

Question – #15. Corn stunt in maize crop is caused by?

(a). Phytoplasma.
(b). Virus.
(c). Bacteria.
(d). Fungi.

See Answer

Question – #16. Fire blight is a disease of?

(a). Sun flower.
(b). Apple.
(c). Grapes.
(d). Carrot.

See Answer

Question – #17. Non-persistent viruses are transmitted through…….?

(a). Contaminants of insect’s mouth parts.
(b). Legs of vector insects.
(c). Anterior region of the gut of a vector.
(d). All of the above.

See Answer

Question – #18. For the control of Helicoverpa armigera which stage of Chrysoperla carnea is released?

(a). 1st instar.
(b). 2nd star.
(c). Both a and b.
(d). all of the above.

See Answer

Question – #19. Leaf curl of tobacco is caused by?

(a). Thrips.
(b). White fly.
(c). Jassid.
(d). Aphid.

See Answer

Question – #20. Synomones is a defense mechanism in which….?

(a). A plant pooduces toxic substance.
(b). A plant produces substance which changes feeding behavior of pest.
(c). A plant produces substance which attracts natural enemies.
(d). Non of the above.

See Answer

Question – #21. Which group of insects are more difficult to control by insecticide?

(a). Scale insects.
(b). Aphid.
(c). Thrips.
(d). Larvae.

See Answer

Question – #22. The science of study of honey bee is known as?

(a). Apiary.
(b). Apiculture.
(c). Melittology.
(d). All of the above.

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Question – #23. Insects collected for specimen are killed by using?

(a). Potassium cyanide.
(b). Cyanide.
(c). Formalin.
(d). EDB.

See Answer

Question – #24. Regular pest can bedefined as?

(a). Abundance in all season.
(b). Abundance during crop season.
(c). Either a or b.
(d). Non of the above.

See Answer

Question- #25. Pheromone is available against which insect?

(a). Cabbage moth.
(b). Bollworm.
(c). Apple fruit moth.
(b). Citrus cutworm.

See Answer

Question- #26. What is the purpose of using pheromones?

(a). Monitoring.
(b). Mating disruption.
(c). Pest control.
(d). All of the above.

See Answer

Question- #27. Which irrigation system helps to control potato tuber moth in field?

(a). Drip irrigation.
(b). Flood irrigation.
(c). Sprinkler irrigation.
(d). Non of the above.

See Answer

Question- #28. Ovicides are used to destroy?

(a). Ovary of harmful insects.
(b). Eggs of harmful insects.
(c). Larvae of harmful insects.
(d). Non of the above.

See Answer

Question- #29. Scientific name of wild silkmoth is?

(a). Bombyx croesi.
(b). Bombyx mandarina.
(c). Bombyx brunnea.
(d). Bombyx sinensis.

See Answer

Question- #30. White fly is a vector of….?

(a). Okra YVM.
(b). Seasame Leaf Curl.
(c). Tobacco Leaf Curl.
(d). All of the above.

See Answer

Question- #31. Which is an outdoor bin?

(a). Pusa bin.
(b). Pucca kothi.
(c). Paddy straw-mud structure.
(d). All of the above.

See Answer

Question- #32. In which storage structure food-grains remain safe from insect attack?

(a). Pusa bin.
(b). Cement ring bins.
(c). VPS.
(d). Ferro cement bins.

See Answer

Question- #33. Which is true for butterflies?

(a). Pupae are naked.
(b). Ocelli is absent.
(c). Both a and b.
(d). Comb like antennae.

See Answer

Question- #34. Which is true for moths?

(a). Ocelli is present, 2.
(b). Usually night-fliers.
(c). Relatively large body.
(d). All of the above.

See Answer

Question- #35. Scientific name of dusky cotton bug is?

(a). Phenacoccus solenopsis.
(b). Dysdercus koenigii.
(c). Oxycarenus laetus.
(d). Anomis flava.

See Answer

Question- #36. A lower LD50 is indicative of…..

(a). Increased toxicity.
(b). Decreased toxicity.
(c). Safe zone.
(d). Non of the above.

See Answer

Question- #37. Bees are not found one of which place?

(a). Australia.
(b). Africa.
(c). South America.
(d). Antarctica.

See Answer

Question- #38. Which is true about the lac insect?

(a). It is beneficial for host plant.
(b). It is harmful for host plant.
(c). Neither harmful nor beneficial.
(d). All of the above.

See Answer

Question- #39. Shellac is made from?

(a). Broodlac.
(b). Sticklac.
(c). Seedlac.
(d). All of the above.

See Answer

Question- #40. Which pesticide is banned in India?

(a). Methyl parathion.
(b). Sodium cyanide.
(c). B.H.C.
(d). All of the above.

See Answer

Question- #41. Trichogramma is a…….?

(a). Endoparasitoides of insect eggs.
(b). Ectoparasitoides of insect eggs.
(c). Endo-ecto parasitoides of insect eggs.
(d). Non of the above.

See Answer

Question- #42. Flaring of squares in cotton is due to?

(a). Pink bollworm.
(b). American bollworm.
(c). Spotted bollworm.
(d). Red cotton bug.

See Answer

Question- #43. Clorpyrifos was first patented in the year?

(a). 1966.
(b). 2000.
(c). 2004.
(d). 1980.

See Answer

Question- #44. Insecticide act was passed in the year?

(a). 1966.
(b). 1967.
(c). 1968.
(d). 1969.

See Answer

Question- #45. Plant aphids are more destructive in…..?

(a). Tropical region.
(b). Temperate region.
(c). Region of high rainfall.
(d). All of the above.

See Answer

Question- #46. Which is broad spectrum approach of pest control?

(a). Biological control.
(b). Chemical method.
(c). IPC.
(d). Both a and C.

See Answer

Question- #47. Lady bird beetle is a predator of….?

(a). Aphid.
(b). Scale insects.
(c). Mites.
(d). All of the above.

See Answer

Question- #48. Which is not a rodent?

(a). Gerbils.
(b). Pikas.
(c). Hamsters.
(d). Possums.

See Answer

Question- #49. Ariel application was first applied in which country?

(a). Egypt.
(b). China.
(c). USA.
(d). Israel.

See Answer

Question- #50. Superheating of godown is done at….?

(a). 50 ℃ for 10-12 hours.
(b). 100 ℃ for 12 hours.
(c). 50 ℃ for 24 hours.
(d). 100 ℃ for 6 hours.

See Answer

Question- #51. Total genera of lac insects are?

(a). 2.
(b). 4.
(c). 3.
(d). 6.

See Answer

Question- #52. Group of wingless insect is?

(a). Thysanura.
(b). Diplura.
(c). Collembola.
(d). All of the above.

See Answer

Question- #53. The concept of biotic school was given by?

(a). Howard and Fiske.
(b). Nicholson.
(c). Smith.
(d). Bodenheimer.

See Answer

Question- #54. Trap crop sown along with tobacco crop is?

(a). Castor.
(b). Jatropa.
(c). Cotton.
(d). Okra.

See Answer

Question- #55. Which is not a hemimetabolous pest?

(a). Whitefly.
(b). Leaf hoppers.
(c). Aphids.
(d). Lemon butterfly.

See Answer

Question- #56. Associate Certified Entomologist is related with?

(a). Pest control.
(b). Crop-insect relationship.
(c). Pest surveillance.
(d). All of the above.

See Answer



NOTE: This page is updated every Monday (Morning). Number of questions in each update – 1 to 10.

Last Updated: 28/10/2019 at 08:06 am IST.

New Question Added: #55-56.









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