Gce Model Questions Vol1 2021 Agricultural Science Question 16
Practice objective / multiple choice question 16 from the 2021 Gce Model Questions Vol1 Agricultural Science examination.
An agronomist is assessing the economic threshold for a maize pest. The market value of the crop is $1800 per hectare. The cost of applying an insecticide is $45 per hectare. Each unit increase in pest density (per 1000 plants) causes a 0.5\% reduction in yield. Using the economic injury level formula \(EIL = \frac{C}{V \times L}\), where \(L\) is the loss per pest unit expressed as a proportion, calculate the pest density (units per 1000 plants) at which it becomes economical to spray.
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About This Question
This is Gce Model Questions Vol1 2021 Agricultural Science Question 16. It is one of the objective questions from the 2021 Gce Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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