Waec Model Questions Vol1 2024 Agricultural Science Question 32

Practice objective / multiple choice question 32 from the 2024 Waec Model Questions Vol1 Agricultural Science examination.

Waec Model Questions Vol1 2024 Agricultural Science Objective / Multiple Choice Medium Difficulty
Question 32 WAEC_MODEL_QUESTIONS_VOL1 • 2024 • AGRICULTURAL_SCIENCE • objective

A 5‑ha soybean field has an aphid population of 120 aphids per plant. The economic threshold (ET) is 80 aphids per plant and each aphid causes a 0.02% loss in yield per plant. The crop's yield potential is 2.5 t/ha. A pesticide reduces the aphid population by 70% at a cost of ₦15,000 per ha. The market price of soybeans is ₦200 per kg. Should the farmer apply the pesticide? Show the net loss (in naira) with and without spraying and state the recommendation.

Answer Options

A. Apply pesticide; loss without spray ₦12,000 vs loss with spray ₦14,400 (extra ₦2,400).
Correct Answer B. Do not apply pesticide; loss without spray ₦12,000 vs loss with spray ₦18,600 (extra ₦6,600).
C. Do not apply pesticide; loss without spray ₦13,200 vs loss with spray ₦18,600 (extra ₦5,400).
D. Apply pesticide; loss without spray ₦12,000 vs loss with spray ₦10,500 (savings ₦1,500).
Correct Answer
B
Correct Option:
Do not apply pesticide; loss without spray ₦12,000 vs loss with spray ₦18,600 (extra ₦6,600).

About This Question

This is Waec Model Questions Vol1 2024 Agricultural Science Question 32. It is one of the objective questions from the 2024 Waec Model Questions Vol1 Agricultural Science examination.

Difficulty level: Medium .

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