1. Which of the following is a systemic fungicide?

• Mancozeb
• Chlorothalonil
• Metalaxyl
• Captan

2. Which pest is controlled using pheromone traps?

• Aphids
• Fruit flies
• Cutworms
• Leafhoppers

3. What is the primary target of nematicides?

• Insects
• Weeds
• Nematodes
• Fungi

4. Which of the following is a contact herbicide?

• Glyphosate
• Paraquat
• Atrazine
• 2,4-D

5. Which biological control agent is used against aphids?

• Trichogramma
• Bacillus thuringiensis
• Lady beetles
• Nematodes

6. What is the mode of action of insect growth regulators?

• Disrupting nervous system
• Inhibiting chitin synthesis
• Preventing molting
• Interfering with respiratory system

7. The use of neem oil in pest control is an example of which type of control method?

• Biological
• Chemical
• Cultural
• Mechanical

8. What type of pathogen causes “late blight” in potatoes?

• Virus
• Bacteria
• Fungus
• Nematode

9. Which is a common symptom of viral infection in plants?

• Yellowing of leaves
• Wilting
• Root rot
• Galls

10. What does IPM stand for in crop protection?

• Integrated Pest Management
• International Pest Monitoring
• Insect Pest Management
• Integrated Plant Management

11. What is the most common method of controlling weeds in rice paddies?

• Manual weeding
• Herbicides
• Crop rotation
• Mulching

12. Which insect is a vector for the transmission of tungro virus in rice?

• Brown planthopper
• Rice bug
• Green leafhopper
• Stem borer

13. Which of the following is not a method of biological control?

• Use of parasitoids
• Use of predators
• Use of pheromones
• Use of pathogens

14. In crop protection, what is the main purpose of crop rotation?

• Increase soil fertility
• Control soil erosion
• Break pest and disease cycles
• Improve crop yield

15. Which chemical is commonly used as a fumigant for soil sterilization?

• Methyl bromide
• DDT
• Malathion
• Carbaryl

16. What is the primary benefit of using cover crops in pest management?

• Improve soil structure
• Increase soil nutrients
• Suppress weeds
• Enhance water retention

17. Which fungal disease affects grapes and causes powdery mildew?

• Botrytis cinerea
• Plasmopara viticola
• Uncinula necator
• Venturia inaequalis

18. Which of the following is a non-selective herbicide?

• Atrazine
• 2,4-D
• Glyphosate
• Simazine

19. In crop protection, what does the term “economic threshold” refer to?

• Maximum pesticide residue limit
• Minimum pest population for control measures
• Cost of pest control
• Crop yield loss due to pests

20. Which is a common biological control method for managing pests in stored grains?

• Fumigation
• Use of diatomaceous earth
• Use of parasitoid wasps
• Chemical insecticides

21. Which pest management strategy involves using resistant crop varieties?

• Cultural control
• Chemical control
• Biological control
• Host plant resistance

22. What is the main disadvantage of using chemical pesticides?

• High cost
• Development of resistance in pests
• Slow action
• Requires expertise

23. Which of the following is a selective herbicide used in broadleaf weed control?

• Glyphosate
• 2,4-D
• Paraquat
• Atrazine

24. The pest control method involving the release of sterilized male insects is known as?

• Genetic control
• Cultural control
• Chemical control
• Biological control

25. What is the causative agent of “black sigatoka” in bananas?

• Fungus
• Bacteria
• Virus
• Nematode

26. What type of pesticide is used to control mites?

• Insecticide
• Nematicide
• Miticide
• Fungicide

27. Which method is used to control soil-borne pathogens?

• Foliar spraying
• Soil solarization
• Seed treatment
• Trunk injection

28. What does the term “residual toxicity” mean in pesticide use?

• Immediate toxicity
• Long-lasting effect
• Non-toxic to humans
• Biodegradable

29. Which of the following is an example of a botanical pesticide?

• DDT
• Nicotine
• Malathion
• Aldicarb

30. Which pest is known for causing “hopperburn” in rice?

• Green leafhopper
• Brown planthopper
• Whitefly
• Thrips

31. What is the mode of action of Bt (Bacillus thuringiensis) in insect control?

• Neurotoxin
• Digestive system toxin
• Respiratory system toxin
• Hormonal disruption

32. What is a major disadvantage of monoculture in crop protection?

• Increased biodiversity
• Increased risk of pest outbreaks
• Reduced soil erosion
• Improved pest control

33. Which of the following is not a component of Integrated Pest Management (IPM)?

• Biological control
• Chemical control
• Cultural control
• Exclusive reliance on chemical pesticides

34. Which insecticide group does imidacloprid belong to?

• Organophosphates
• Neonicotinoids
• Carbamates
• Pyrethroids

35. What type of resistance occurs when pests become resistant to multiple classes of pesticides?

• Cross-resistance
• Multiresistance
• Target-site resistance
• Metabolic resistance

36. Which of the following is a method of cultural pest control?

• Crop rotation
• Pesticide application
• Release of predators
• Use of pheromone traps

37. What is the primary function of a surfactant in pesticide application?

• To increase evaporation
• To enhance spreading and adhesion
• To reduce toxicity
• To neutralize the pesticide

38. Which disease is caused by the bacterium Xanthomonas oryzae in rice?

• Bacterial wilt
• Leaf rust
• Bacterial blight
• Downy mildew

39. Which weed is commonly controlled by the herbicide atrazine?

• Crabgrass
• Nutsedge
• Pigweed
• Barnyard grass

40. Which of the following is an example of a mechanical control method?

• Biological control
• Using traps
• Applying pesticides
• Crop rotation

41. Which pathogen causes “downy mildew” in grapes?

• Plasmopara viticola
• Phytophthora infestans
• Fusarium oxysporum
• Erysiphe necator

42. What type of control strategy involves altering the planting time to avoid pest outbreaks?

• Cultural control
• Biological control
• Chemical control
• Genetic control

43. Which of the following is a preventive measure in pest management?

• Applying insecticides
• Using resistant crop varieties
• Setting up traps
• Spraying fungicides

44. Which fungus causes “rice blast” disease?

• Fusarium oxysporum
• Magnaporthe oryzae
• Puccinia graminis
• Rhizoctonia solani

45. Which of the following is a biological insecticide?

• Pyrethrin
• Malathion
• Spinosad
• Carbaryl

46. What is the role of a buffer zone in pesticide application?

• To prevent pesticide drift
• To increase pesticide efficacy
• To enhance crop yield
• To reduce pesticide cost

47. Which weed is commonly controlled by the herbicide atrazine?

• Crabgrass
• Nutsedge
• Pigweed
• Barnyard grass

48. Which of the following is an example of a mechanical control method?

• Biological control
• Using traps
• Applying pesticides
• Crop rotation

49. Which pathogen causes “downy mildew” in grapes?

• Plasmopara viticola
• Phytophthora infestans
• Fusarium oxysporum
• Erysiphe necator

50. What type of control strategy involves altering the planting time to avoid pest outbreaks?

• Cultural control
• Biological control
• Chemical control
• Genetic control