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WAEC Agricultural Science 1991 (August) Question 33

Question 33

Crop Diseases

What symptom can be used to identify maize rust?

  1. A.Yellow colouration of the leaves
  2. B.Raised brown spots on the leaves
  3. C.Infected leaves showing stripes of yellow and green
  4. D.Drying up of the leaves
  5. E.Shedding of leaves.
Show the answer and explanation

Answer: B (Raised brown spots on the leaves)

Explanation

Rust shows as raised reddish-brown pustules (spots) on leaves.