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    Question

    Which of the following statements related to disease

    management is/are correct (A). Biological management of disease make use of, hyperparasitism. (B). Thiram is a contact fungicide. (C). Bordeaux mixture consists of copper sulphate, ammonium carbonate and water (D). Crop rotation is a prophylactic measure of disease management. Choose the correct answer from the options given below:
    A (A), (B) and (D) only. Correct Answer Incorrect Answer
    B (A), (B) and (C) only Correct Answer Incorrect Answer
    C (A), (B), (C) and (D). Correct Answer Incorrect Answer
    D (B), (C) and (D) only. Correct Answer Incorrect Answer

    Solution

    (A) Biological management using hyperparasitism: True, this involves using one parasite against another to manage crop diseases. (B) Thiram is a contact fungicide: True, thiram is a widely used contact fungicide. (C) Bordeaux mixture components: False, Bordeaux mixture consists of copper sulphate, lime, and water, not ammonium carbonate. (D) Crop rotation as a prophylactic measure: True, rotating crops can prevent the buildup of soil-borne pathogens.

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