Neco 2022 Agricultural Science Question 33

Practice objective / multiple choice question 33 from the 2022 Neco Agricultural Science examination.

Neco 2022 Agricultural Science Objective / Multiple Choice Medium Difficulty
Question 33 NECO • 2022 • AGRICULTURAL_SCIENCE • objective

For a maize field, the stem borer causes an average yield loss of \(0.8\) kg per larva per hectare. The market price of maize is \(\text{₦}150\) per kg. The cost of a pesticide application is \(\text{₦}2400\) per hectare and the pesticide kills \(90\%\) of the larvae present. (a) Calculate the economic injury level (EIL) in larvae per hectare. (b) If a scouting report shows \(120\) larvae per hectare, should the farmer spray? Justify your answer.

Answer Options

Correct Answer A. EIL ≈ 22 larvae/ha; spray (yes).
B. EIL ≈ 18 larvae/ha; spray (yes).
C. EIL ≈ 22 larvae/ha; spray (no).
D. EIL ≈ 24 larvae/ha; spray (yes).
Correct Answer
A
Correct Option:
EIL ≈ 22 larvae/ha; spray (yes).

About This Question

This is Neco 2022 Agricultural Science Question 33. It is one of the objective questions from the 2022 Neco Agricultural Science examination.

Difficulty level: Medium .

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