Waec Model Questions Vol1 2020 Agricultural Science Question 26
Practice objective / multiple choice question 26 from the 2020 Waec Model Questions Vol1 Agricultural Science examination.
A maize farmer intends to control stem borer using an insecticide. The cost of applying the insecticide is ₦150 per hectare. The market price of maize grain is ₦25 per kilogram. Each stem borer causes a loss of 0.02 kg of grain per plant it attacks, and the insecticide is 80 % effective in preventing that loss. Using the economic injury level formula EIL = C / (V × L × E), where C is the control cost per hectare, V is the grain price per kilogram, L is the loss per insect (kg), and E is the efficacy (as a decimal), calculate the number of stem borers per hectare that constitute the economic injury level.
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About This Question
This is Waec Model Questions Vol1 2020 Agricultural Science Question 26. It is one of the objective questions from the 2020 Waec Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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