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WAEC Agricultural Science 2009 Question 36

Question 36

Crop Pests

An example of biological control of pests is

  1. A.using lady bird beetles to feed on cytoplasm
  2. B.early planting of maize
  3. C.harvesting maize when properly dried
  4. D.soaking bean seeds in bordeaux mixture
Show the answer and explanation

Answer: A (using lady bird beetles to feed on cytoplasm)

Explanation

Biological control uses living natural enemies, such as ladybird beetles that eat aphids.