Neco 2023 Agricultural Science Question 23
Practice objective / multiple choice question 23 from the 2023 Neco Agricultural Science examination.
In a cotton field each bollworm larva causes a loss of 0.25\,kg of lint. The market price of lint is \u20A5150\,kg\textsuperscript{-1}. An insecticide application costs \u20A512,000\,ha\textsuperscript{-1} and kills 95\% of the larvae present. Using the economic injury level formula \(EIL = \dfrac{C}{V \times D \times K}\), where \(C\) is the control cost per hectare, \(V\) is the market value per kilogram, \(D\) is the loss per larva (kg), and \(K\) is the efficacy, calculate the threshold number of larvae per hectare at which the farmer should apply the insecticide. Round up to the nearest whole larva.
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About This Question
This is Neco 2023 Agricultural Science Question 23. It is one of the objective questions from the 2023 Neco Agricultural Science examination.
Difficulty level: Medium .
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