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    Question

    In integrated pest management the Economic Threshold

    Level (ETL) means ____
    A The level of pesticide required to manage a pest Correct Answer Incorrect Answer
    B The levels of pest populations at which one should control the pest to prevent the unacceptable injury Correct Answer Incorrect Answer
    C A type of structure designed to be more resistant to pest invasion Correct Answer Incorrect Answer
    D The levels of heat and moisture required for a pest to survive Correct Answer Incorrect Answer
    E None of them Correct Answer Incorrect Answer

    Solution

    In Integrated Pest Management (IPM), the Economic Threshold Level (ETL) is the population level of a pest at which control measures should be applied to prevent economic damage to crops. If pest populations exceed this level, the cost of damage outweighs the cost of control.

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