Gce Model Questions Vol1 2023 Agricultural Science Question 7

Practice essay / theory question 7 from the 2023 Gce Model Questions Vol1 Agricultural Science examination. This question covers Crop Pests, Integrated Pest Management .

Gce Model Questions Vol1 2023 Agricultural Science Essay / Theory
Topics: Crop Pests Integrated Pest Management
Question 7 GCE_MODEL_QUESTIONS_VOL1 • 2023 • AGRICULTURAL_SCIENCE • essay

A farmer in the savanna zone cultivates maize on a 2.5 ha field. Over the past month the farmer has observed several symptoms on the leaves, including ragged feeding holes on the leaf margins and a white, cotton‑like growth on the undersides of leaves.

Question Parts

( a )
Identify two major insect pests that commonly attack maize in this region and describe one distinguishing symptom for each.
( b )
For the pest you identified in part (a) that shows ragged feeding holes, outline its life cycle, highlighting the stage most susceptible to control measures.
( c )
Propose an integrated pest management (IPM) strategy for the pest chosen in part (b), including cultural, biological and chemical control options. Justify the sequence of measures.
( d )
The farmer intends to apply a synthetic insecticide that contains 250 g of active ingredient per litre. The recommended dose is 0.5 ml per square metre per application. Calculate the volume of insecticide required for the whole field for one application, and discuss two safety precautions the farmer should observe when handling the insecticide.

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About This Question

This is Gce Model Questions Vol1 2023 Agricultural Science Question 7. It is one of the essay questions from the 2023 Gce Model Questions Vol1 Agricultural Science examination.

The question covers Crop Pests, Integrated Pest Management .

View More Gce Model Questions Vol1 2023 Agricultural Science Questions More Gce Model Questions Vol1 Practice Questions Back to Questions

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