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    Question

    In weed control, the term “antagonism” refers to

    which of the following scenarios involving herbicides?
    A Two herbicides acting independently Correct Answer Incorrect Answer
    B One herbicide increasing another’s effect Correct Answer Incorrect Answer
    C Herbicides neutralizing each other Correct Answer Incorrect Answer
    D Weeds becoming resistant to herbicides Correct Answer Incorrect Answer
    E Crop injury due to combined application Correct Answer Incorrect Answer

    Solution

    Antagonism occurs when the effect of one herbicide reduces the effectiveness of another when applied together. This is crucial in tank-mix compatibility assessments in weed management.

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