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WAEC Agricultural Science 2003 Question 34

Question 34

Crop Pests

Moths, aphids and mealy bugs cause damage to crops by their

  1. A.piercing and sucking activities
  2. B.piercing and chewing activities
  3. C.chewing and biting activities
  4. D.boring and chewing activities.
Show the answer and explanation

Answer: A (piercing and sucking activities)

Explanation

Aphids and mealybugs pierce plants and suck sap; adult moths also feed by sucking.