4. Methods of Pest Control

*नोट: यह सेक्शन रिवीजन के लिए है। अपना ज्ञान परखने के लिए ऊपर दिए गए क्विज़ में भाग लें।

1. The automatic regulation of pest population by physical or biological factors is called:
   A) Artificial control  |  B) Natural Control  |  C) Mechanical control  |  D) Chemical control
2. Destroying insects by catching them by hand falls under which method?
   A) Physical method  |  B) Mechanical Method  |  C) Biological method  |  D) Legal method
3. Digging a trench around the field is which method of pest control?
   A) Mechanical method  |  B) Physical method  |  C) Cultural method  |  D) Biological method
4. Using chemicals to kill pests is called:
   A) Physical control  |  B) Chemical Control  |  C) Biological control  |  D) Legal control
5. Destroying pests by increasing soil temperature (Soil Solarization) is:
   A) Mechanical  |  B) Physical Method  |  C) Chemical  |  D) Biological
6. Legal restrictions to prevent the spread of pests are called:
   A) Quarantine  |  B) Exclusion  |  C) Prevention  |  D) Eradication
7. Reducing the population of one organism by another is called:
   A) Chemical control  |  B) Biological Control  |  C) Mechanical control  |  D) Physical control
8. Moisture in stored grain should be less than:
   A) 20%  |  B) Less than 10%  |  C) 15%  |  D) 25%
9. Which device is used to burn insects?
   A) Plough  |  B) Flame Thrower  |  C) Sprayer  |  D) Duster
10. Shaking leaves to drop insects into a water solution is which method?
    A) Mechanical  |  B) Cultural  |  C) Chemical  |  D) Biological
11. Sticky Traps are used in which method?
    A) Mechanical  |  B) Physical  |  C) Biological  |  D) Legal
12. Attracting pests towards a glowing bulb is called:
    A) Temperature control  |  B) Light Trap  |  C) Sound control  |  D) None
13. What is the safest alternative to agrochemicals?
    A) Stomach poison  |  B) Botanicals  |  C) Fumigant  |  D) Contact poison
14. Deep Ploughing of soil is which method of pest control?
    A) Mechanical  |  B) Cultural Method  |  C) Physical  |  D) Biological
15. Using radioactive rays (like gamma rays) in pest control is which method?
    A) Mechanical  |  B) Physical method  |  C) Chemical  |  D) Legal
16. How does Mixed Cropping help in pest control?
    A) Insects get confused  |  B) Insects die  |  C) Roots get strong  |  D) None
17. What is the main reason for the increase in pest population?
    A) Favorable environment  |  B) Lack of enemies  |  C) Abundance of food  |  D) All of the above
18. Hand picking method is useful for which pest?
    A) Mosquito  |  B) Katra and Locust larvae  |  C) Termite  |  D) White fly
19. Who is primarily attracted in a Pheromone Trap?
    A) Female insect  |  B) Male Insects  |  C) Larva  |  D) Egg
20. Growing pest-resistant varieties is part of which method?
    A) Mechanical  |  B) Cultural Method  |  C) Chemical  |  D) Physical
21. Poisonous chemicals that cover the insect's body are called:
    A) Stomach poison  |  B) Contact Poison  |  C) Fumigant  |  D) Systemic poison
22. Attracting pests to their preferred plants and then destroying them is:
    A) Trap Crops  |  B) Mixed cropping  |  C) Crop rotation  |  D) Clean cultivation
23. Chemicals that alter insect behavior to keep them away from food:
    A) Attractants  |  B) Repellents  |  C) Poison  |  D) Hormone
24. Suitable temperature to destroy insect eggs is:
    A) 0-5°C  |  B) 50-60°C  |  C) 25-30°C  |  D) 100°C
25. Removing weeds and keeping fields clean is which method?
    A) Mechanical  |  B) Sanitation  |  C) Biological  |  D) Chemical
26. Synthetic hormones that stop insect development are called:
    A) IGR (Insect Growth Regulators)  |  B) Poison  |  C) Fertilizer  |  D) Salt
27. What effect does atmospheric pressure change have on insects?
    A) Difficulty in flying  |  B) Increase in number  |  C) No effect  |  D) Color change
28. Conserving insect-eating birds (like Myna, Partridge) is which method?
    A) Natural control  |  B) Cultural control  |  C) Mechanical  |  D) Chemical
29. Gas used for 'Fumigation' in grain storage is:
    A) Oxygen  |  B) Methyl Bromide  |  C) Nitrogen  |  D) CO2
30. Poisons that kill insects after being absorbed within the plant:
    A) Contact poison  |  B) Systemic Poison  |  C) Stomach poison  |  D) Fumigant
31. What is the main goal of IPM (Integrated Pest Management)?
    A) Total eradication of pests  |  B) Keeping population below Economic Injury Level (EIL)  |  C) Only biological methods  |  D) Increasing chemicals
32. Who gave the 'Sterile Male Technique' in pest control?
    A) Mendel  |  B) E.F. Knipling  |  C) Watson  |  D) Darwin
33. Alkaloids like nicotine and pyrethrum are which type of pesticides?
    A) Synthetic  |  B) Botanical  |  C) Inorganic  |  D) Mineral oil
34. An example of 'Predators' in pest control is:
    A) Lady bird beetle  |  B) Trichogramma  |  C) Virus  |  D) Fungi
35. In which year was the Insecticide Act implemented in India?
    A) 1947  |  B) 1968 (Enforced 1971)  |  C) 1990  |  D) 2005
36. NPV (Nuclear Polyhedrosis Virus) is used for the control of?
    A) Termite  |  B) Helio-this (Gram pod borer)  |  C) Locust  |  D) White Grub
37. Chrysoperla carnea is a famous _____:
    A) Parasite  |  B) Predator  |  C) Pathogen  |  D) Insect
38. What type of biological insecticide is Bt (Bacillus thuringiensis)?
    A) Fungi  |  B) Bacteria  |  C) Virus  |  D) Nematode
39. Why does 'Resistance' to pesticides develop in insects?
    A) Continuous use of the same chemical  |  B) Changing food  |  C) Temperature  |  D) Air
40. What does LD50 value (Lethal Dose 50) indicate?
    A) Insect age  |  B) Toxicity of the chemical  |  C) Seed purity  |  D) Plant growth
41. Who is known as an 'Egg Parasitoid' of insects?
    A) Trichogramma  |  B) White fly  |  C) Earthworm  |  D) Spider
42. What is the function of an 'Attractant' in pest control?
    A) Repel pests  |  B) Attract pests towards the trap  |  C) Put pests to sleep  |  D) Eat pests
43. The best method to control pests in a Greenhouse is:
    A) Aerial spray  |  B) Screening and biological control  |  C) Deep ploughing  |  D) Burning fire
44. What is the importance of a nozzle during pesticide spraying?
    A) Increase chemical amount  |  B) Control droplet size and distribution  |  C) Change color  |  D) None
45. In what form is 'DDVP' used in storage?
    A) Contact poison  |  B) Fumigant  |  C) Fertilizer  |  D) Salt