passwella.
Menu

WAEC Agricultural Science 1991 (August) Question 34

Question 34

Crop Diseases

Use the information below: I. Pale leaves II. Shrunken new leaves III. Water-soaked bark which peels off IV. Gum-like exudation from the cracks on the bark. Which of the following diseases of citrus has the symptoms listed above?

  1. A.Die-bark
  2. B.Gum-mosis
  3. C.Blight
  4. D.Tristeza
  5. E.Citrus scab.
Show the answer and explanation

Answer: B (Gum-mosis)

Explanation

Gummosis is named after the gum that oozes from cracked, water-soaked bark.