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WAEC Agricultural Science 2011 Question 34

Question 34

Crop Pests

Crop rotation decreases the incidence of pests by

  1. A.breaking life cycles of pests
  2. B.attracting pest predators.
  3. C.sterilizing the soil.
  4. D.maintaining soil fertility.
Show the answer and explanation

Answer: A (breaking life cycles of pests)

Explanation

Pests lose their host plant when a different crop follows, so their life cycle is broken.