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JAMB and WAEC Agricultural Science questions: Crop pests and diseases

39 questions with answers and explanations. Tap an option to check yourself.

AllJAMBWAEC
All topicsAgricultural economics and extension · 41Animal pests and diseases · 38Animal reproduction and nutrition · 38Classification and anatomy of farm animals · 37Crop classification and propagation · 36Crop pests and diseases · 39Farm tools and mechanisation · 35Fisheries and aquaculture · 35Forestry · 33Husbandry of field crops · 41Irrigation and drainage · 36Livestock management · 37Meaning and importance of agriculture · 36Soil fertility, manures and fertilisers · 43Soil formation and properties · 39Weeds and weed control · 33

  1. Question 1· Crop pests and diseases· JAMB

    Smut of sorghum is caused by a

    Explanation and discussion

  2. Question 2· Crop pests and diseases· JAMB

    Locusts damage crops by

    Explanation and discussion

  3. Question 3· Crop pests and diseases· WAEC

    A pest is any organism that

    Explanation and discussion

  4. Question 4· Crop pests and diseases· WAEC

    Cassava leaves that are mottled yellow-green, twisted and stunted show signs of

    Explanation and discussion

  5. Question 5· Crop pests and diseases· JAMB

    The swollen shoot disease of cocoa is spread by

    Explanation and discussion

  6. Question 6· Crop pests and diseases· WAEC

    Biological control of pests involves

    Explanation and discussion

  7. Question 7· Crop pests and diseases· WAEC

    Cocoa pods that turn brown-black and rot during wet weather show signs of

    Explanation and discussion

  8. Question 8· Crop pests and diseases· JAMB

    Fumigation is used mainly to control

    Explanation and discussion

  9. Question 9· Crop pests and diseases· WAEC

    The cassava mealybug was controlled in Nigeria largely by

    Explanation and discussion

  10. Question 10· Crop pests and diseases· JAMB

    Which of these is a cultural method of pest control?

    Explanation and discussion

  11. Question 11· Crop pests and diseases· JAMB

    Cassava mosaic disease is spread by

    Explanation and discussion

  12. Question 12· Crop pests and diseases· JAMB

    Pests with piercing and sucking mouthparts, such as aphids, are best controlled with

    Explanation and discussion

  13. Question 13· Crop pests and diseases· WAEC

    The insect that spreads cassava mosaic disease is the

    Explanation and discussion

  14. Question 14· Crop pests and diseases· WAEC

    Weevils mainly damage

    Explanation and discussion

  15. Question 15· Crop pests and diseases· JAMB

    The cowpea weevil damages

    Explanation and discussion

  16. Question 16· Crop pests and diseases· WAEC

    Black pod disease of cocoa can be controlled by

    Explanation and discussion

  17. Question 17· Crop pests and diseases· WAEC

    Aphids, which have piercing and sucking mouthparts, are best controlled with

    Explanation and discussion

  18. Question 18· Crop pests and diseases· WAEC

    The stem borer damages maize by

    Explanation and discussion

  19. Question 19· Crop pests and diseases· JAMB

    Groundnut rosette disease is transmitted by

    Explanation and discussion

  20. Question 20· Crop pests and diseases· WAEC

    Damping-off disease of seedlings is caused by

    Explanation and discussion

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