WAEC Agricultural Science 2025 Objective — Question 33

Question 33 of 50 from the West African Examinations Council (WAEC) Agricultural Science 2025 Objective paper, with the correct answer and a full explanation.

Which of the following diseases of crops could be controlled by the application of fungicides?

A. cassava mosaic
B. swollen shoot of cocoa
C. cotton leaf curl
D. sigatoka disease of bananaCorrect

Explanation

Sigatoka is a fungal disease that attacks banana plants. It is caused by the fungus Mycosphaerella spp and leads to the formation of lesions on banana leaves, which limits photosynthesis and weakens the plant. Fungicides can help manage it by limiting spore production.

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