Waec Model Questions Vol1 2019 Agricultural Science Question 29
Practice objective / multiple choice question 29 from the 2019 Waec Model Questions Vol1 Agricultural Science examination.
A wheat farmer monitors a 5‑ha field for stem‑borer insects. Each insect per square metre reduces the yield by 0.8 kg per hectare. The wheat yield without pest damage is 4 tonnes per hectare and the market price is ₦250 per kilogram. The insecticide costs ₦12,000 per hectare and reduces the pest population by 90 %. Determine the economic injury level (EIL) - the minimum pest density (in insects per m²) at which the farmer should apply the insecticide.
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About This Question
This is Waec Model Questions Vol1 2019 Agricultural Science Question 29. It is one of the objective questions from the 2019 Waec Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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