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WAEC Agricultural Science 2019 Question 31

Question 31

Crop Pests

Biological control of insect-pests of crops is carried out through

  1. A.crop rotation.
  2. B.use of predators.
  3. C.use of pesticides.
  4. D.farm sanitation.
Show the answer and explanation

Answer: B (use of predators.)

Explanation

Biological control uses living natural enemies.