Free Plant Protection MCQs with Answers

• A. campo deiform
• B. Vermiform
• C. Eruci form
• D. Scarabaeiform

Explanation: Vermiform larvae are elongated and cylindrical, usually tapering toward the front, and lack legs.

• A. Eggs
• B. Pupae
• C. Larvae
• D. Naiad

Explanation: Campodeiform is a larval form resembling the active, elongated nymph of Campodea, usually with well-developed legs and a distinct head.

• A. Hinder margin
• B. Frontal margin
• C. Inner margin
• D. Outer margin

Explanation: The apical margin is the outer margin at the wing tip, opposite the basal or inner margin.

• A. Prognathous
• B. Hypognathous
• C. Opisthognathous
• D. Opis thosynchous

Explanation: A prognathous head has the mouthparts directed forward, with the long axis of the head broadly aligned with the body axis.

• A. Hinder margin
• B. Outer margin
• C. Frontal margin
• D. Inner margin

Explanation: The costal margin is the leading or anterior edge of an insect wing, also called the frontal margin.

• A. Biting and sponging type
• B. Piercing sucking type
• C. Chewing lapping type
• D. Biting chewing type

Explanation: Grasshoppers and crickets have mandibulate mouthparts adapted for biting and chewing plant material.

• A. Thrips
• B. Aphid
• C. Housefly
• D. None

Explanation: Thrips have asymmetrical rasping-sucking mouthparts because one mandible is reduced and the mouthparts are adapted to scrape plant tissue.

• A. Elongate
• B. Stalked
• C. Conical
• D. Oval

Explanation: Whitefly eggs are typically stalked, with each egg attached to the leaf by a short stalk.

• A. Pleuron
• B. Tergum
• C. None of the above
• D. Sternum

Explanation: The sternum is the ventral, or lower, sclerotized region of an insect body segment.

• A. Tergum
• B. Pleuron
• C. Sternum
• D. None of the above

Explanation: The tergum is the dorsal, or upper, sclerotized region of an insect body segment. Its corresponding ventral region is the sternum.

• A. Insect ecology
• B. Insect PhysiologyInsects & Entomology
• C. None of the above
• D. Insect morphology

Explanation: Insect physiology studies how insect body parts and systems function, whereas morphology deals with their form and structure.

• A. Scape, club, flagellum
• B. Ring, funicle, club
• C. Scape pedicel, flagellum
• D. Pedicle, scape, club

Explanation: An insect antenna normally consists of three basic parts: scape, pedicel and flagellum.

• A. Cosmopolitan insects
• B. Household insects
• C. Store grain
• D. None of the above

Explanation: Cosmopolitan insects occur across very broad geographic regions, often nearly worldwide.

• A. Parasite
• B. Predator
• C. Scavenger
• D. Parasite

Explanation: A predator is a free-living organism that captures and feeds on other organisms, usually killing them in the process.

• A. Diurnal insects
• B. Nocturnal insects
• C. Crepuscular insects
• D. None of the above

Explanation: Crepuscular insects are most active during twilight, especially around dawn or dusk.

• A. Diurnal insects
• B. Crepuscular insects
• C. Nocturnal insects
• D. None of the aboveInsects & Entomology

Explanation: Nocturnal insects are active mainly during the night. Crepuscular insects are associated with dawn and dusk, whereas diurnal insects are…

• A. Eggs
• B. None of the above
• C. Nymph
• D. Young ones

Explanation: Viviparous insects give birth to live young rather than laying eggs externally.

• A. Pectinophora gossypiella (Pink bollworm)
• B. Ants
• C. Green lacewing
• D. Helicoverpa armigera

Explanation: Pectinophora gossypiella, the pink bollworm, is essentially restricted to cotton and is therefore monophagous.

• A. Aestivation
• B. Starvation
• C. Dormancy
• D. Non of the above

Explanation: Starvation is the physiological suffering or condition caused by inadequate food.

• A. Acrotergata
• B. Antecosta
• C. Tagmata
• D. None of the above

Explanation: The three principal insect body regions, head, thorax and abdomen, are tagmata, meaning specialized body divisions.