Gce Model Questions Vol1 2018 Agricultural Science Question 7

Practice essay / theory question 7 from the 2018 Gce Model Questions Vol1 Agricultural Science examination. This question covers Crop Pests, Insect identification, Life cycle, Yield loss estimation, Integrated pest management .

Gce Model Questions Vol1 2018 Agricultural Science Essay / Theory
Topics: Crop Pests Insect identification Life cycle Yield loss estimation Integrated pest management
Question 7 GCE_MODEL_QUESTIONS_VOL1 • 2018 • AGRICULTURAL_SCIENCE • essay

A farmer in northern Nigeria observes damage to his maize crop. The symptoms include small, circular, dead patches on leaves and the presence of a small, brown, soft‑bodied insect on the undersides of leaves. The farmer cultivates 2 hectares of maize with an expected yield of 5 tonnes per hectare. Market price of maize is ₦200 per kilogram. Field inspection shows that about 15 % of the leaf area of the crop is affected by the pest. Assume that for each 1 % of leaf area damaged, the yield is reduced by 0.5 % of the potential yield.

Question Parts

( a )
Identify the pest responsible for the described damage.
( b )
Outline the main stages of the pest’s life cycle that are relevant to control measures.
( c )
Calculate the monetary loss the farmer is likely to incur because of the pest damage.
( d )
Recommend an integrated pest management (IPM) strategy for this pest, explaining why each component is appropriate.

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About This Question

This is Gce Model Questions Vol1 2018 Agricultural Science Question 7. It is one of the essay questions from the 2018 Gce Model Questions Vol1 Agricultural Science examination.

The question covers Crop Pests, Insect identification, Life cycle, Yield loss estimation, Integrated pest management .

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