Question
GSMediumPrelims 2018Science & Technology

Consider the following:

  1. Birds
  2. Dust blowing
  3. Rain
  4. Wind blowing

Which of the above spread plant diseases?

Explanation

All of the listed factors - birds, dust blowing, rain, and wind blowing - can contribute to the spread of plant diseases

Statement 1 is correct: Birds can act as vectors, carrying and spreading plant pathogens from one location to another through their feathers, feet, or droppings.

Statement 2 is correct: Dust and soil particles blown by the wind can carry and spread plant diseases, especially fungal spores and bacterial cells.

Statement 3 is correct: Rain can splash and disperse plant pathogens, such as fungi and bacteria, from the soil or infected plant parts to uninfected plants.

Statement 4 is correct: Wind can transport and spread airborne plant pathogens, such as fungal spores and bacterial cells, over long distances.

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