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      Question

      Synthetic pyrethroids should not be used for the

      control of rice insect pest because it increase the population of
      A Rice plant hopper Correct Answer Incorrect Answer
      B Rice hispa Correct Answer Incorrect Answer
      C Grasshopper Correct Answer Incorrect Answer
      D Mite Correct Answer Incorrect Answer

      Solution

      Two species of planthopper infest rice. These are the brown planthopper (BPH), Nilaparvata lugens (Stal); and the whitebacked planthopper (WBPH), Sogatella furcifera (Horvath).

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