UPSC Previous Year Question | Prelims GS | 2018

Consider the following: 1. Birds 2. Dust blowing 3. Rain 4. Wind blowing. Which of the above spread plant diseases?

  1. 1 and 3 only
  2. 3 and 4 only
  3. 1, 2 and 4 only
  4. 1, 2, 3 and 4

Answer

Correct Answer

1, 2, 3 and 4

Explanation

Plant pathogens can be spread by birds, wind-blown dust, rain splash and wind, so all four are correct.

Topics: agents spreading plant diseases, agriculture, crop protection, plant diseases