Ecological factors favouring green leafhopper (Nephotettix virescens) population in rice (Oryza sativa)


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Authors

  • N RAJU
  • R RAJENDRAN
  • A ABDUL KAREEM

Keywords:

rice, Oryza sativa, green leafhopper, Nephotettix virescens, light-trap, field, species composition, regression equation, agro-meteorological parameters

Abstract

Peak occurrence of green leafhopper (Nephotettix virescens (Distant)] on rice (Oryza sativa L.) was noted during September and October in 1991-93. The species composition studied revealed that N. virescens dominated over N. nigropictus (Stal.) during all the peak occurrences in the light-trap as well as field collections. Influence of weather factors on green-leafhopper population for the spring, autumn and winter seasons showed positive association with relative humidity and negative with minimum temperature. Multiple regression equation fitted also showed 68, 77 and 63% association for these 3 seasons respectively to the agro-meteorological factors.

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Author Biographies

  • N RAJU
    Associate Professor, Tamil Nadu Rice Research Institute, Tamil Nadu Agricultural University, Aduthurai 612 101

  • R RAJENDRAN
    Associate Professor, Tamil NaduRice Research Institute, Tamil Nadu Agricultural University, Aduthurai 612 101

  • A ABDUL KAREEM
    Vice-Chancellor, Tamil Nadu Agricultural University,
    Coimbatore 641 001, Tamil NaduRice Research Institute, Tamil Nadu Agricultural University, Aduthurai 612 101


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Issue

Vol. 67 No. 1 (1997)

Section

Articles

License

The copyright of the articles published in The Indian Journal of Agricultural Sciences is vested with the Indian Council of Agricultural Research, which reserves the right to enter into any agreement with any organization in India or abroad, for reprography, photocopying, storage and dissemination of information. The Council has no objection to using the material, provided the information is not being utilized for commercial purposes and wherever the information is being used, proper credit is given to ICAR.

How to Cite

RAJU, N., RAJENDRAN, R., & KAREEM, A. A. (2013). Ecological factors favouring green leafhopper (Nephotettix virescens) population in rice (Oryza sativa). The Indian Journal of Agricultural Sciences, 67(1). https://epubs.icar.org.in/index.php/IJAgS/article/view/29839