Neco 2017 Agricultural Science Question 20
Practice objective / multiple choice question 20 from the 2017 Neco Agricultural Science examination.
In a field of 200 cassava plants, a survey found that 30 plants showed symptoms of a fungal leaf spot disease. For the diseased plants, the average percentage of leaf area affected was 12 %.\n\nCalculate (i) the disease incidence (%), (ii) the disease severity index (DSI) using the formula \( \text{DSI} = \frac{\text{Incidence} \times \text{Severity}}{100} \). Give your answer for DSI to one decimal place.
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About This Question
This is Neco 2017 Agricultural Science Question 20. It is one of the objective questions from the 2017 Neco Agricultural Science examination.
Difficulty level: Medium .
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