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    Question

    Which of the following symptoms are caused by Rice stem

    borer? 
    A Dead heart Correct Answer Incorrect Answer
    B White head Correct Answer Incorrect Answer
    C Silvery shoot Correct Answer Incorrect Answer
    D Both a and b Correct Answer Incorrect Answer
    E All of the above Correct Answer Incorrect Answer

    Solution

    The caterpillar of stem borer bores into central shoot of paddy seedling and causes drying of the central shoot known as “dead heart”. When stem borer attacks in flowering stage, it causes whitehead.

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