Entomology Quiz | Agriculture MCQ Practice for IBPS AFO 2026

1

What is the typical protein content range (expressed as a percentage) found in bee pollen collected by Apis mellifera, a crucial component for brood rearing?

Solution & Explanation Bee pollen typically contains between 16% and 30% protein, making it an essential food source for bee larvae and young bees. This protein is vital for their growth and development. The exact protein content varies depending on the floral source.

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2

What is the significance of scouting in IPM?

To randomly apply pesticides

To monitor pest populations and assess damage levels

To solely rely on chemical control

To ignore pest infestations

To only focus on beneficial insects

Solution & Explanation Scouting involves regularly monitoring fields to identify pests, assess their population densities, and evaluate the extent of damage. This information is crucial for making informed decisions about when and how to implement control measures in IPM, following ICAR guidelines.

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3

Which of the following insecticides is derived from a naturally occurring bacterium?

Solution & Explanation Spinosad is derived from the naturally occurring bacterium *Saccharopolyspora spinosa*. It acts on the nicotinic acetylcholine receptors and GABA receptors of insects, leading to excitation of the nervous system and muscle contractions.

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4

Which insect pest is known for causing significant damage to cotton crops by feeding on the bolls?

Whitefly (Bemisia tabaci)

Cotton bollworm (Helicoverpa armigera)

Leafhoppers (Amrasca biguttula biguttula)

Aphids (Aphis gossypii)

Thrips (Thrips tabaci)

Solution & Explanation The Cotton bollworm (Helicoverpa armigera) is a major pest of cotton, known for its destructive feeding on the bolls. This damage directly impacts the yield and quality of cotton fiber.

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5

What is the process called when a honeybee colony leaves its hive en masse, typically in the spring, to form a new colony?

Solution & Explanation Swarming is the natural process by which a honeybee colony reproduces, involving the departure of the old queen and a large portion of the worker bees to establish a new colony elsewhere. This is often triggered by overcrowding.

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Entomology Quiz for IBPS AFO 2026

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