Neco 2019 Agricultural Science Question 4

Practice objective / multiple choice question 4 from the 2019 Neco Agricultural Science examination.

Neco 2019 Agricultural Science Objective / Multiple Choice Medium Difficulty
Question 4 NECO • 2019 • AGRICULTURAL_SCIENCE • objective

In a maize field \(12\%\) of the area is infested with stem borer. The economic injury threshold for chemical control is \(8\%\). A pesticide costs \(\text{₦}25,000\) per hectare and reduces infestation to \(2\%\). A biological control costs \(\text{₦}15,000\) per hectare and reduces infestation to \(5\%\). Loss of yield is estimated at \(\text{₦}120,000\) for each percent of area infested per hectare. Which control method minimises the total loss (control cost plus yield loss) per hectare?

Answer Options

A. Use the biological control; total loss is \\(\\text{₦}615,000\\) per hectare.
Correct Answer B. Use the chemical pesticide; total loss is \(\text{₦}265,000\) per hectare.
C. Use the chemical pesticide; total loss is \\(\\text{₦}250,000\\) per hectare.
D. Do not apply any control; total loss is \\(\\text{₦}1,440,000\\) per hectare.
Correct Answer
B
Correct Option:
Use the chemical pesticide; total loss is \(\text{₦}265,000\) per hectare.

About This Question

This is Neco 2019 Agricultural Science Question 4. It is one of the objective questions from the 2019 Neco Agricultural Science examination.

Difficulty level: Medium .

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