Waec Model Questions Vol1 2024 Agricultural Science Question 41
Practice objective / multiple choice question 41 from the 2024 Waec Model Questions Vol1 Agricultural Science examination.
A wheat field of 4 ha has an initial leaf‑rust incidence of 8 % at the start of the season. The disease spreads at a rate of 15 % of the healthy plants per week. A resistant variety reduces the weekly spread rate by 40 % and a fungicide kills 60 % of the infected plants each week. Assuming the two control measures act independently and that the same sequence (fungicide then spread) repeats each week, what will be the percentage of infected plants after two weeks?
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About This Question
This is Waec Model Questions Vol1 2024 Agricultural Science Question 41. It is one of the objective questions from the 2024 Waec Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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