Practice Introductory Entomology Questions and Answers

• Marigold is used as a trap crop for which pest?​
• Which insect order is characterised by complete metamorphosis, with larvae having chewing mouthparts that change to a siphoning type in the adult stage?
• The insect order Hymenoptera, which includes bees, wasps and ants, is generally characterised by which wing feature, unlike Diptera which have only one fun...
• Diptera, the insect order that includes houseflies and mosquitoes, is characterised by having only?
• The process by which an insect periodically sheds its old exoskeleton to allow further growth is called?
• Insects belong to which larger group of animals, which also includes spiders and crabs?
• Which of the following insects is beneficial as it helps in the pollination of many crops?
• The stage of a butterfly's life cycle in which it remains enclosed and motionless inside a hard covering is called the?
• In insect taxonomic classification, which rank lies immediately below 'Order' and above 'Genus'?
• The antenna type that is thread-like at the base and club-shaped at the tip, characteristic of butterflies, is called?
• The specialised sensory structures found on insect antennae, primarily responsible for detecting odours and pheromones, are called?
• Which insect is a well-known pest that damages cotton bolls by feeding inside them?
• Whitefly, a common pest of cotton, mainly damages the crop by?
• Which of the following is a useful insect that helps control harmful pests in a cotton field?
• Cotton aphids, small insects commonly found on the crop, mainly damage cotton by?
• Thrips, tiny insects that attack cotton leaves, typically cause damage that appears mainly as?
• Spiders and praying mantises found in cotton fields are generally considered helpful because they?
• The 'American bollworm' (Helicoverpa armigera), a major pest of cotton, is scientifically classified under which insect order?
• Which cotton pest is known to cause 'hopperburn', characterized by leaf curling, drying, and reddening along the margins?
• 'Parthenogenesis', a reproductive phenomenon seen in some cotton pests like aphids, refers to?
• The application of 'Beauveria bassiana' in cotton fields is primarily intended to manage?
• Which biofertilizer bacterium forms a symbiotic relationship inside the root nodules of leguminous crops, but is NOT typically used for cotton?
• The devastating Cotton Leaf Curl Virus (CLCuV) in North India is transmitted specifically by which biotype of the whitefly (Bemisia tabaci)?
• The development of resistance to Bt toxins in Pink Bollworm is primarily an example of?
• Which specific parasitoid wasp is mass-reared and released in cotton ecosystems for the biological control of the Pink Bollworm?
• 'Protandry', a biological phenomenon observed in insects like the American bollworm (Helicoverpa armigera), refers to?
• Insecticide Resistance Action Committee (IRAC) Mode of Action Classification assigns Spinosad (Spinosyns) to which group?
• The Pink Bollworm (Pectinophora gossypiella) undergoes a dormant stage called 'diapause' to survive unfavorable conditions. In cotton fields, this diapause...
• The transmission of Cotton Leaf Curl Virus (CLCuV) by the whitefly (Bemisia tabaci) is characterized scientifically as?
• While both Thrips and Jassids suck sap from cotton leaves, the specific diagnostic symptom of heavy Thrips infestation on cotton seedlings is?
• The 'Spiny Bollworm' (Earias insulana), a major pest of cotton, is taxonomically distinct from the American bollworm primarily because it belongs to a diff...
• Which pest is known for cutting the stems of young cotton seedlings at the base during the night, causing the plant to fall over?
• Cotton aphids feed by sucking sap from the leaves. What is the secondary, highly damaging effect of their feeding?
• The destructive Pink Bollworm is the larval stage of which type of insect?
• Red spider mites, which can severely damage cotton by sucking leaf sap, are not true insects. They belong to the class?
• The 'Q-biotype' of the whitefly (Bemisia tabaci), a major threat to cotton due to its exceptional resistance to insecticides, originated in which region?
• In the context of Pink Bollworm (PBW) diapause, the primary environmental cue that triggers the termination of diapause and adult emergence is?
• The evolutionary strategy where the cotton plant produces toxic gossypol glands in the foliage to deter herbivorous insects is an example of?
• While both Earias vittella (Spotted Bollworm) and Pectinophora gossypiella (Pink Bollworm) bore into cotton bolls, the Spotted Bollworm can be distinguishe...
• T he taxonomic term 'holometabolous' describes insects that undergo which type of development?