MCQs Entomology-23 Posted on August 7, 2025August 30, 2025Author agropublishers 0 1. Which class of insecticides is derived from chrysanthemum flowers? Organophosphates Pyrethroids Neonicotinoids Carbamates 2. __________ are a class of insecticides that are chemically similar to nicotine and act on the nervous system of insects Pyrethroids Neonicotinoids Carbamates Organophosphates 3. __________ is the silkworm species known for producing eri silk Antheraea mylitta Bombyx mori Samia ricini 4. Which class of insecticides is known for its toxicity to mammals? Neonicotinoids Carbamates Pyrethroids Organophosphates 5. In _________ development, there is simply a gradual increase in the size of young insect until adult dimensions are attained Holometabolous None of these Hemimetabolous Ametabolous 6. In houseflies, the sponging mouthparts are primarily formed by_________ Labrum Mandibles Maxillae Labium with labella 7. What are the most important vectors of human diseases? Mosquitoes Cockroaches Moths Fleas 8. A tormogen cell is always associated with a(n)___________ Seta Gland Spine Apodeme 9. What is the best example of a physical pest control method? Introducing natural predators Using insecticides Crop rotation Hand-picking insects 10. In insects, Basiconic sensilla are typically located on the __________ Wings Thorax Legs Antennae Loading … Question 1 of 10
