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WAEC Agricultural Science 1996 Question 33

Question 33

Crop Pests

Biological control of insect pests of crops can best be carried out through

  1. A.crop rotation
  2. B.use of parasites and predators
  3. C.soil fumigation
  4. D.farm sanitation
  5. E.use of resistant varieties
Show the answer and explanation

Answer: B (use of parasites and predators)

Explanation

Biological control uses living natural enemies.