Neco 2020 Agricultural Science Question 9
Practice objective / multiple choice question 9 from the 2020 Neco Agricultural Science examination.
A \(2.5\)-ha maize field is infested with stem borer at a density of \(8\) larvae m\(^{-2}\). Two insecticides are available:\n\n- Insecticide A: application rate \(0.75\ \text{L ha}^{-1}\), cost ₦\(120\ \text{L}^{-1}\).\n- Insecticide B: application rate \(1.2\ \text{L ha}^{-1}\), cost ₦\(85\ \text{L}^{-1}\); it is only effective when pest density exceeds \(6\) larvae m\(^{-2}\).\n\nWhich insecticide should be used for this field, and what is the total cost (in ₦) of treating the whole field with the chosen product? Provide the answer in the form "Insecticide X, total cost ₦Y".
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About This Question
This is Neco 2020 Agricultural Science Question 9. It is one of the objective questions from the 2020 Neco Agricultural Science examination.
Difficulty level: Medium .
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