Waec Model Questions Vol1 2025 Agricultural Science Question 7
Practice objective / multiple choice question 7 from the 2025 Waec Model Questions Vol1 Agricultural Science examination.
A certain insect pest causes a 0.2% yield loss per insect per plant. A field contains 10,000 plants, each normally yielding 0.5 kg of crop. The market price of the crop is N600 per kilogram. The cost of applying an insecticide is N1,200 per hectare, and the insecticide is 80% effective in reducing the pest population. Determine the economic threshold, i.e., the minimum number of insects per plant at which applying the insecticide becomes profitable.
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This is Waec Model Questions Vol1 2025 Agricultural Science Question 7. It is one of the objective questions from the 2025 Waec Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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