Neco Model Questions Vol1 2025 Agricultural Science Question 48
Practice objective / multiple choice question 48 from the 2025 Neco Model Questions Vol1 Agricultural Science examination.
A pest causes a 0.8 % yield loss per insect per plant. Five insects are observed on each plant. The crop yield is 4 t ha⁻¹ and the market price is ₦500 kg⁻¹. The pesticide costs ₦12,000 ha⁻¹ and reduces the pest population by 90 %. The economic injury level (EIL) is given by \(\text{EIL}=\dfrac{C}{V\,D\,K}\), where \(C\) is the control cost per hectare, \(V\) is the market value per kilogram of yield, \(D\) is the damage per insect (as a proportion of yield), and \(K\) is the efficacy (proportion reduction). The field is planted at a density of 40,000 plants ha⁻¹. Should the pesticide be applied? Answer **Yes** or **No**.
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This is Neco Model Questions Vol1 2025 Agricultural Science Question 48. It is one of the objective questions from the 2025 Neco Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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