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Must-Try Crop Protection MCQs for LEA Aspirants

ByAditya Abhishek

Hey students, preparing for your upcoming agriculture examinations such as PRC LEA, UPSC, ICAR JRF, etc. but confused about whether your preparation is going well or not? Well, no more! At Agriculture Review, we keep updating new test series based on previous years’ questions of the Examination for Agriculturists.

In this test, you have to attempt 50 questions from the Crop Protection subject. Attempting all questions is necessary to identify your strengths and weaknesses. After completing the test, you can take a screenshot of your result for future reference and compare it with past performances. To stay updated with regular test series, click on the bell icon at the bottom left corner of the screen.

📘 How to Attempt These LEA Based MCQs

Follow these simple steps to simulate exam conditions, boost accuracy, and learn from mistakes effectively.

  1. Read each question carefully. Look for keywords like “primary,” “most common,” or “best suited.”
  2. Use the elimination method. Cross out obviously wrong options first to narrow choices.
  3. Time management: Aim for 1 minute per question (total 50 minutes). Mark hard questions and return to them later.
  4. Think conceptually. LEA questions often test application — ask yourself why an answer fits.
  5. Keep calculations minimal. Most MCQs are conceptual; when calculations appear, write steps clearly.
  6. After finishing, review answers. Check the answer key only after completing the whole test to assess time and accuracy.
  7. Create a revision list. Note down topics you missed and review them in short, focused sessions.
Quick tips:
  • Answer easy questions first to secure marks quickly.
  • For disease questions, remember causative agents (virus/bacteria/protozoa) and prevention methods (vaccination/biosecurity).
  • Memorize common breeds, top-producing regions, and key lab tests (e.g., CMT for mastitis).

Tip: Repeat the quiz weekly and track progress. Consistent practice beats last-minute cramming.

You can also join our Facebook Broadcast Channel, where we regularly share newly updated questions. All the best for today—I hope you become a registered Agriculturist soon!

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Crop Protection MCQs

Crop Protection MCQs

1. Which fungal pathogen is the causal organism of rice blast disease?

2. The grassy stunt virus of rice is transmitted by which insect vector?

3. Which of the following weeds belongs to the family Cyperaceae?

4. The “dirty panicle” symptom in rice is commonly associated with which fungal pathogen?

5. The parasitic weed “Cuscuta” primarily affects which type of crops?

6. The “sigatoka leaf spot” disease in banana is caused by which pathogen?

7. The rice stem borer belongs to which order of insects?

8. Which herbicide is classified as an acetolactate synthase (ALS) inhibitor?

9. Aflatoxin contamination in stored grains is mainly associated with which fungal species?

10. Which of the following is a biological control agent used against the diamondback moth (*Plutella xylostella*)?

11. The mango pulp weevil (*Sternochetus frigidus*) belongs to which insect family?

12. Tungro disease in rice is caused by a combination of which two viruses?

13. Which insect pest is known as the “silent destroyer” of stored grains?

14. “Bakanae” or foolish seedling disease of rice is caused by which pathogen?

15. The diamondback moth (*Plutella xylostella*), a major pest of crucifers, belongs to which insect order?

16. The “downy mildew” disease in maize is caused by which pathogen?

17. The corn earworm (*Helicoverpa armigera*) causes the most serious damage at which crop stage?

18. The Panama wilt disease of banana is caused by which pathogen?

19. The coconut hispine beetle (*Brontispa longissima*) primarily damages which part of the plant?

20. The late blight disease of potato, responsible for the Irish famine, is caused by which pathogen?

21. The sugarcane top borer (*Scirpophaga excerptalis*) belongs to which insect order?

22. “Kresek” symptom in rice is typically associated with which bacterial disease?

23. Which of the following is an example of a perennial broadleaf weed?

24. Economic Threshold Level (ETL) is defined as:

25. Which of the following storage pests produces characteristic “shot holes” in grains?

26. Which pathogen causes the “downy mildew” disease in pearl millet?

27. Paraquat, a widely used herbicide, acts as:

28. Which biological control agent is used against the coconut scale insect (*Aspidiotus destructor*)?

29. “Blue mold” disease in stored tobacco is caused by:

30. Climate change is expected to increase pest incidence primarily due to:

31. The rice stem borer, a major pest of rice, belongs to which insect order?

32. Which bacterial pathogen causes banana bacterial wilt?

33. Which weed is commonly known as “nutgrass”?

34. The sterile male insect technique used in pest control is an example of:

35. Which insect pest is a vector of grassy stunt and ragged stunt viruses in rice?

36. Late blight of potato is caused by:

37. Which is a post-emergence selective herbicide commonly used in rice?

38. In IPM, cultural control practices include:

39. Which insect is commonly used as a biological control agent against aphids?

40. Climate change may increase pest outbreaks because of:

41. Which fungal pathogen causes “bakanae” or foolish seedling disease in rice?

42. Downy mildew in corn is caused by which group of pathogens?

43. The characteristic symptom of tungro disease in rice is:

44. Which weed is most problematic in transplanted lowland rice fields in the Philippines?

45. Stem rust of wheat is caused by which pathogen?

46. Which herbicide is classified as a non-selective, systemic herbicide?

47. Bacterial leaf blight of rice is caused by:

48. Striga asiatica, a parasitic weed, primarily infests which group of crops?

49. Which disease of coconut is associated with *Phytophthora palmivora*?

50. The weed Trianthema portulacastrum is commonly known as:

Your Quiz Result

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Aditya Abhishek has completed Bachelor Of Science in Agriculture from SDSUV, Uttarakhand. He focuses on learning and delivering knowledge on Agriculture and Home Gardening. He created Agriculture Review as a common platform for all nature enthusiast to learn better practices of agriculture, gardening & shop quality products & services.

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