Beneficial insects – silkworm species, rearing, diseases, by-products, economic importance - Question Bank
1. What is the term for the practice of raising silkworms on a commercial scale?
2. The species Attacus atlas, known for producing the largest cocoons among moths, is a source of:
3. The economic value of silk is derived from its properties such as:
4. Which of the following is a major challenge in silkworm rearing related to diseases?
5. The process of spinning the cocoon by the silkworm larva involves the secretion of:
6. The economic importance of sericulture is amplified by its potential to:
7. Which disease is characterized by the silkworm's body becoming hard, dry, and mummified, often with a chalky appearance?
8. The transformation from larva to pupa involves a process called:
9. The economic significance of Muga silk, unique to Northeast India, is primarily due to its:
10. Which of the following is a common by-product of silkworm rearing that can be used as a soil conditioner?
11. The process of selecting healthy eggs for hatching in sericulture is called:
12. The disease known as 'Atrophy' in silkworms is often linked to:
13. Which of the following is a critical factor for successful silkworm rearing, affecting their health and development?
14. The adult stage of the silkworm is a moth that:
15. The economic importance of wild silks like Tussah and Muga lies in their:
16. Which country is the world's largest producer of silk?
17. The primary by-product of sericulture after reeling silk is called:
18. The pupal stage of the silkworm is characterized by:
19. Which of the following is a fungal disease affecting silkworms, often appearing as a greenish or greyish mold on the body?
20. A deficiency in mulberry leaves can lead to stunted growth and reduced silk yield in silkworms, highlighting the importance of:
21. What is the term for the process of removing the sericin gum from raw silk before weaving?
22. The economic contribution of sericulture includes not only silk production but also:
23. The immature stage of the silkworm, where it undergoes multiple molts, is the:
24. Which silkworm species is primarily associated with the production of wild silk?
25. Mulberry cultivation, essential for Bombyx mori rearing, is a significant part of the sericulture industry and is known as:
26. The silk glands of the silkworm larva are homologous to the:
27. Flacherie is a disease affecting silkworms caused by:
28. What is the term for the process of killing the pupa inside the cocoon to prevent emergence and damage to the silk filament?
29. The rearing of silkworms is typically done indoors in controlled environments known as:
30. Which of the following is NOT a stage in the life cycle of a typical silkworm?
31. The economic importance of silkworm by-products like silk waste lies in their use for:
32. Tussah silk is a type of wild silk produced by larvae that feed on:
33. Eri silk, known for its breathable and insulating properties, is produced by which silkworm species?
34. The silkworm species Antheraea assamensis is known for producing which type of silk?
35. What is the primary economic importance of sericulture?
36. Which of the following is a by-product of sericulture that can be used in cosmetics and pharmaceuticals?
37. The process of unwinding the silk filament from the cocoon is known as:
38. The raw silk filament is coated with a gummy substance called sericin. What is its primary role?
39. Which part of the silkworm's body is responsible for secreting the silk fibroin?
40. Grasserie is a viral disease that affects silkworms, leading to symptoms like:
41. Muscardine disease, characterized by a white powdery growth on the silkworm body, is caused by:
42. Pebrine disease in silkworms is caused by a microscopic organism belonging to which group?
43. Which of the following is a major bacterial disease affecting silkworms?
44. The casing spun by the silkworm larva around itself is known as a:
45. Which stage of the silkworm life cycle produces the silk thread?
46. The process of raising silkworms for silk production is called:
47. What is the primary food source for the larvae of Bombyx mori?
48. The larval stage of the silkworm, responsible for feeding and growth, is also known as the:
49. Which is the most commonly cultivated silkworm species globally for commercial silk production?