Neco 2021 Agricultural Science Question 17
Practice objective / multiple choice question 17 from the 2021 Neco Agricultural Science examination.
An aphid population on a 2‑ha soybean field starts at 1 200 individuals and doubles every 3 days. The economic threshold (ET) is 8 000 aphids per ha. The insecticide costs ₦2 500 per ha, and each aphid above the ET causes a loss of ₦0.005. Assuming the farmer can apply the insecticide only at the end of a 3‑day interval, determine the latest day (counted from day 0) on which the farmer can apply the insecticide so that the total cost (control cost plus loss cost) is minimized.
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About This Question
This is Neco 2021 Agricultural Science Question 17. It is one of the objective questions from the 2021 Neco Agricultural Science examination.
Difficulty level: Medium .
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