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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(3): 1397-1405
DOI: https://doi.org/10.20546/ijcmas.2018.703.167


Population Dynamics of Sugarcane Plassey Borer Chilo tumidicostalis Hmpson (Lepidoptera: Pyralidae)
R.K. Nath1* and D.K. Saikia2
1Department of Entomology, Krishi Vigyan Kendra, Assam Agricultural University,
Tinsukia-786 125, India
2Department of Entomology, Assam Agricultural University, Jorhat-785 013, India
*Corresponding author
Abstract:

Investigation on the population dynamics of sugarcane plassey borer, Chilo tumidicostalis Hmpsn (Lepidoptera: Pyralidae) was carried out in laboratory and fields during 2014-15 and 2015-16. The cane damaged by the insect started in case of primary infestation from first fortnight of April 2014 with a peak (10.36%) in the first fortnight of July. In the case of secondary infestation, per cent incidence of the cane was observed lately in the second fortnight of June with a highest peak (19.53%) in the first half of November. The larval population of insect in case of primary and secondary infestation was observed in second fortnight of April and August for both the year, 2014-15 and 2015-16 respectively. Cotesia flavipes was an important potential parasitoid parasitizing 40.07 per cent in second fortnight of September and 39.04 per cent in second fortnight of September for the year 2014-15 and 2015-16, respectively. In the field maximum and minimum temperature, morning and evening relative humidity, total rainfall had positive correlation with the pest population while number of rainy days showed negative influence on the population build-up of the insect.


Keywords: Plassey borer, Primary infestation, Secondary infestation, Spindle etc.
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How to cite this article:

Nath, R.K. and Saikia, D.K. 2018. Population Dynamics of Sugarcane Plassey Borer Chilo tumidicostalis Hmpson (Lepidoptera: Pyralidae).Int.J.Curr.Microbiol.App.Sci. 7(3): 1397-1405. doi: https://doi.org/10.20546/ijcmas.2018.703.167