Gce Model Questions Vol1 2023 Agricultural Science Question 44
Practice objective / multiple choice question 44 from the 2023 Gce Model Questions Vol1 Agricultural Science examination.
In a maize field, each stem‑borer larva causes a loss of 0.8 kg of grain per hectare. The market price of maize is ₦150 per kg. An insecticide costs ₦12 000 per hectare and reduces the larval population by 90 %. Determine the economic threshold density (ETD) of larvae per hectare above which the insecticide application is justified.
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About This Question
This is Gce Model Questions Vol1 2023 Agricultural Science Question 44. It is one of the objective questions from the 2023 Gce Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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