Studies on Seasonal Incidence of Eutectona machaeralis Walker on Teak Seedling Stock


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Authors

  • M.S. Ali Department of Forestry, Rajendra Agricultural University, Pusa (Samastipur)- 848 125
  • T. Alam Department of Forestry, Rajendra Agricultural University, Pusa (Samastipur)- 848 125
  • Manoj Kumar Department of Forestry, Rajendra Agricultural University, Pusa (Samastipur)- 848 125
  • O.P. Chatruvedi National Research Centre for Agroforestry, Jhansi 284 003 (U.P.)

Keywords:

Eutectona machaeralis, seasonal incidence, teak

Abstract

Seasonal incidence and level of infestation caused by different instars of E. machaeralis in nursery stock during July' 97 to April' 98 was studied. Active larval incidence on leaves per seedling ranged from 8.33 to 38.46% in different months. Low and moderate incidence had ranged from 8.33 to 22.22% and 32.0 to 37.50%, respectively. The population building was started by the first week of October and hiked gradually upto 48.0 per seedling during third week of November. Climatic data showed significant influence on population build up of the pest. Rainfall (x5), minimum temperature (x2), relative humidity at 14 hrs (x4) had significant positive correlation on larval population of the pest on teak seedlings in north Bihar.

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Submitted

15-07-2020

Published

06-08-2020

Issue

Vol. 4 No. 1 (2002)

Section

Articles

License

Indian Society of Agroforestry deemed to have copyright on all the articles published in Indian Journal of Agroforestry.

How to Cite

Ali, M., Alam, T., Kumar, M., & Chatruvedi, O. (2020). Studies on Seasonal Incidence of Eutectona machaeralis Walker on Teak Seedling Stock. Indian Journal of Agroforestry, 4(1). https://epubs.icar.org.in/index.php/IJA/article/view/102436