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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.
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2017 - 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 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(8): 1777-1784
DOI: https://doi.org/10.20546/ijcmas.2017.608.210


Seasonal Incidence of Major Insect Pests of Cowpea in Relation to Biotic and Abiotic Factors
Maya Shree Mahipal1*, Shri Gajendra Chandrakar1, Yashpal Singh Nirala1,Devendra Nishad2 and Birendra Tigga3
1Department of Entomology, 2Department of Pathology, 3Department of Agronomy, Indira Gandhi Krishi Vishwavidyalaya, Raipur- 492012, Chhattisgarh, India
*Corresponding author
Abstract:

The present study was conducted at Horticultural Research Farm, College of Agriculture, Indira Gandhi KrishiVishwavidyalaya; Raipur (C.G.) during kharif season 2015-16. The results of field experiments revealed that the major insect pest viz., spotted pod borer, flower thrips, pod sucking bug and green stink bug were attacking in cowpea germplasm Lola. The incidence of pod sucking bug, green stink bug and flower thrips started from third week after transplanting, further increased and recorded the peak activity of 9.0 bugs per plant and 12.3 bugs per plant during second week of November, whereas the peak activity of 4.3 thrips per plant was observed during first week of October. The cowpea spotted pod borer infestation was first appeared during fifth week of September, increased gradually with peak pod infestation of 19.7 per cent during third week of October. The population of flower thrips and pod sucking bug was positively and non significant correlated with maximum and minimum temperature while negatively correlated with maximum and minimum relative humidity, rainfall and sunshine hours. The cowpea spotted pod borer infestation showed positive and non significant correlation with maximum and minimum temperature, rainfall, sunshine hours, maximum and minimum relative humidity.


Keywords: Cowpea, Flower thrips, Biotic and abiotic factors.
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How to cite this article:

Maya Shree Mahipal, Shri Gajendra Chandrakar, Yashpal Singh Nirala, Devendra Nishad and Birendra Tigga. 2017. Seasonal Incidence of Major Insect Pests of Cowpea in Relation to Biotic and Abiotic Factors.Int.J.Curr.Microbiol.App.Sci. 6(8): 1777-1784. doi: https://doi.org/10.20546/ijcmas.2017.608.210