Gce Model Questions Vol1 2025 Agricultural Science Question 23
Practice objective / multiple choice question 23 from the 2025 Gce Model Questions Vol1 Agricultural Science examination.
For a maize field of 5 ha, the economic injury level (EIL) for stem borer is given by \(EIL = \frac{C}{V\times D\times K}\). The cost of pesticide per hectare is \(C = 1{,}200\) Naira, market price of maize is \(V = 15\) Naira kg⁻¹, each borer causes a loss of \(D = 0.8\) kg ha⁻¹, and pesticide efficacy is \(K = 0.75\).\n\n(a) Calculate the threshold pest density (pests ha⁻¹) at which control is justified.\n(b) If the observed density is 150 pests ha⁻¹, determine the net monetary benefit per hectare of applying the pesticide.
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This is Gce Model Questions Vol1 2025 Agricultural Science Question 23. It is one of the objective questions from the 2025 Gce Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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