Waec Model Questions Vol1 2017 Agricultural Science Question 4
Practice objective / multiple choice question 4 from the 2017 Waec Model Questions Vol1 Agricultural Science examination.
A maize farmer expects a yield of 4 t ha⁻¹ (4000 kg ha⁻¹) and sells maize at ₦150 per kilogram. The Fall Armyworm causes a yield loss of 0.5 % for each larva present on a plant. The farmer can apply a biopesticide at a cost of ₦12 000 ha⁻¹; the product reduces the larval population by 80 %. Determine the minimum larval density (larvae per plant) at which applying the biopesticide becomes economically justified (i.e., the value of the loss avoided exceeds the control cost).
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About This Question
This is Waec Model Questions Vol1 2017 Agricultural Science Question 4. It is one of the objective questions from the 2017 Waec Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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