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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

      Solution

      The caterpillar of stem borer bores into central shoot of paddy seedling and causes drying of the central shoot known as โ€œdead heartโ€. When stem borer attacks in flowering stage, it causes whitehead.

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