All Free Agriculture MCQs with Answers

• A. Antennae in insect
• B. Mouth parts of insect
• C. Eye of insect
• D. Sense organs of insectInsects & Entomology

Explanation: Ocelli are simple light-sensing eyes, usually found on the top or front of an insect’s head.

• A. 3 regions
• B. 5 regions
• C. 10 regions
• D. 2 regions

Explanation: An insect’s body is divided into three regions: head, thorax and abdomen.

• A. Locust
• B. Army worms
• C. Cutworms
• D. Aphid

Explanation: Schistocerca gregaria is the scientific name of the desert locust, a major migratory insect pest.

• A. Digestion
• B. Excretion
• C. Respiration
• D. Secretion

Explanation: Tracheae are a network of air tubes that carry oxygen directly to insect tissues, so they form the respiratory system.

• A. Productive insects
• B. Parasites
• C. Pests
• D. Pollinators

Explanation: Honey bees, bumble bees, butterflies and moths visit flowers and transfer pollen between them, making them important pollinators.

• A. Fruit fly
• B. Leaf minor
• C. Scale insects
• D. HoppersInsects & Entomology

Explanation: Fruit flies are major fruit pests because their larvae develop inside fruit, causing internal damage and rotting that is difficult to…

• A. Malathion and thrips
• B. Leaf minors
• C. DDT & BHC
• D. Naled

Explanation: DDT and BHC are classic organochlorine insecticides, characterised by persistent chlorine-containing compounds.

• A. Jassids and thrips
• B. Wlutefly and jassids
• C. Thrips and whitefly
• D. All the above

Explanation: Jassids, thrips and whiteflies all damage cotton by piercing plant tissues and sucking sap.

• A. All the above
• B. Agricultural machinery and implements
• C. Winds, insects
• D. Seeds

Explanation: Plant diseases can spread through infected seed, contaminated farm machinery and implements, wind, and insect vectors.

• A. Rice
• B. Sugarcane
• C. Wheat
• D. Okra

Explanation: Gurdaspur borer, commonly identified as a sugarcane stem borer, tunnels into sugarcane stalks and weakens the crop.

• A. Locomotion organ
• B. None of the above
• C. Sex organ
• D. Sensory organ

Explanation: Insect antennae are sensory organs containing receptors for smell, touch and other environmental stimuli.

• A. All the aboveAgriculture & Forestry
• B. Brown spot Ratti disease
• C. Rice blast
• D. Foot rot

Explanation: Rice foot rot, brown spot and blast are all recognized diseases of rice, so the inclusive option is correct.

• A. Head
• B. Thorax
• C. Abdomen
• D. Neck

Explanation: Insect legs and wings are attached to the thorax, which is the locomotory region of the insect body.

• A. Secretion
• B. Digestion
• C. Excretion
• D. None of the aboveHealth Conditions

Explanation: Malpighian tubules remove nitrogenous waste from the haemolymph and discharge it into the hindgut, so they serve as the insect excretory…

• A. Cultural and biological control techniques are used
• B. Predators and parasites are used
• C. Pest are controlled culturally
• D. Pesticides are used

Explanation: Integrated pest management combines compatible methods, especially cultural, biological, mechanical and carefully selected chemical…

• A. Disease transmitter
• B. Vector
• C. Pest
• D. Parasite

Explanation: An insect that carries a plant pathogen from an infected plant to a healthy plant is called a vector.

• A. Organo-phosphate
• B. Pyrethroids
• C. Organo-chlorine
• D. Carbamates

Explanation: Pyrethroids generally have very low mammalian toxicity when compared with organophosphates, carbamates and many organochlorines, although…

• A. Organo-chlorine group
• B. Pyrethroid group
• C. Organo-phosphate
• D. Carbamate group

Explanation: Malathion and parathion contain phosphorus-based chemical groups, so they are organophosphate insecticides.

• A. Fungi
• B. Gassicls
• C. Nematodes
• D. Bacteria

Explanation: Onion stalk or soft rot is commonly associated with bacterial infection, particularly soft-rot bacteria that break down plant tissue.

• A. Cultural practices and growing resistant varieties
• B. Cultural practices
• C. Fungicides
• D. Can not be controlled

Explanation: Viruses cannot usually be killed inside infected plants with fungicides, so management relies on sanitation and other cultural practices…