Neco 2021 Agricultural Science Question 8

Practice essay / theory question 8 from the 2021 Neco Agricultural Science examination. This question covers Plant Diseases .

Neco 2021 Agricultural Science Essay / Theory

Topic: Plant Diseases

Question 8 NECO • 2021 • AGRICULTURAL_SCIENCE • essay

A smallholder tomato farmer in the rainforest zone observes wilting and yellowing of lower leaves on his 1‑hectare farm.

Question Parts

( a )

Identify the disease affecting the tomatoes and name the causal pathogen.

( b )

Explain the disease cycle, emphasizing the role of temperature and humidity in disease development.

( c )

A field survey shows that infected plants yield on average 1.8 t ha⁻¹, whereas healthy plants yield 4.5 t ha⁻¹. If the market price of tomatoes is ₦150 per kilogram, calculate the monetary loss per hectare caused by the disease.

( d )

Recommend a comprehensive disease management plan that integrates cultural, biological and chemical measures, and justify each recommendation.

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About This Question

This is Neco 2021 Agricultural Science Question 8. It is one of the essay questions from the 2021 Neco Agricultural Science examination.

The question covers Plant Diseases .

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