Entomology MCQs

1.Which insect is primarily responsible for causing hopper burn in rice crops?

AphidsMango hoppersBrown plant hoppersWhite-backed plant hoppers

2.What is the reproductive process called where multiple offspring develop from a single fertilized egg?

3.What type of mouthparts do jassids, aphids, and bugs possess?

4.What are the external grooves that segment an insect's body called?

5.Which of the following statements accurately describes lac production?

Only male insects produce lacLac is produced exclusively by female insectsFemale insects produce lac in greater quantities than malesMale insects generate more lac compared to femalesNeither males nor females produce lac

6.Which organism is responsible for producing silk?

7.The Gurdaspur borer is known to be a pest that primarily affects which crop?

8.What type of mouthparts does the Sugarcane pyrilla possess?

9.What is the term for the method involving the release of sterile incompatible individuals to manage pest populations?

Use of chemicals for pest controlGenetic control techniquesCombination of chemical and genetic methodsNone of the above

10.What term describes the application of various control methods to keep pest populations below the level that causes economic damage?

11.What term describes all methods employed to maintain pest populations within manageable limits?

Use of chemicalsBiological regulationHuman-made controlUncontrollable situation

12.Cotton bollworms and sugarcane borers are classified as which type of pest?

Primary pestMinor pestSignificant pestDisagree with the statement

13.How is the desert locust classified in terms of pest status?

Primary pestPossible pestSporadic pestDoes not fit any of these categories

14.What are the primary categories of insect pests?

Major pests and minor pestsMigrant pests and potential pestsBoth major/minor and migrant/potential pestsNone of these

15.Which of the following components are part of the basic sections that make up the mouthparts of an insect's head, which is a capsule housing the brain, eyes, antennae, and typically ectognathous mouthparts?

An 'upper lip' known as the labrum, whose underside forms the epipharynxA tongue-like structure called the hypopharynx along with the mandibles (jaws)The paired maxillae together with the 'lower lip' or labiumAll of the above componentsNone of these

16.What is the name of the protective covering on an insect's body that is composed of chitin and protein? Its structure can vary in thickness and composition, making it either soft and flexible or hard and rigid, and it may be permeable or waterproof depending on its function.

A three-layered outer covering (cuticle)A two-layered outer covering (cuticle)A six-layered outer covering (cuticle)None of these

20.What term describes a pesticide's ability to stay effective as a residue due to its low volatility and chemical stability?

PersistenceAerosolDefoliantDesiccant