Multiple choice

Consider the following diseases of plants:

  1. Root knot of sugar-cane.
  2. Root rot of wheat.
  3. Wilt of cotton.
  4. Angular leaf spot of cotton. Which of these diseases is/are caused by fungi?

  1. 1 and 4 only

  2. 2 only

  3. 2 and 3

  4. 1,3 and 4

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Root knot of sugar-cane (Meloidogyne) and wilt of cotton (Verticillium/Fusarium) are caused by nematodes, not fungi. Angular leaf spot of cotton (Xanthomonas) is bacterial. Only root rot of wheat is fungal (Gaeumannomyces/other fungi). Therefore, 1, 3, and 4 are not caused by fungi.

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