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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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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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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(9): 757-762
DOI: https://doi.org/10.20546/ijcmas.2018.709.091


Effect of Weather Parameters on Population Fluctuation of Sucking Pests and Their Predators on Okra Crop
Babita Bhatt, Gouri Shankar Giri, A.K. Karnatak and Shivashankara
Department of Entomology, G. B. Pant University of Agriculture and Technology, Pantnagar – 263 145, Uttarakhand, India
*Corresponding author
Abstract:

A field trial was conducted during the kharif, 2016 at Vegetable Research Centre, Pantnagar to study the correlation of the sucking pest population viz. leafhopper (Amrasca bigutullabigu tulla Ishida), whitefly (Bemisiatabaci Gennadius) and aphids (Aphis gossypii Glover) and their predators mainly Coccinella spp. and spiders with the prevailing weather conditions. The peak densities of insect pests and their predators were attained in September-October. A simple correlation coefficient was worked out between the sucking pests and their predators with the weather parameters. A negative significant correlation (r= -0.711*) of leafhopper population was observed with wind velocity, while positive non-significant correlation (r= 0.051) was observed with the sunshine hours. The aphid population was non-significantly correlated with weather parameters. Whitefly population was negatively and significantly correlated with wind velocity (r = -.718**). Among the predators there was a non-significant correlation of Coccinella with weather parameters while spider population was negatively and significantly correlated with wind velocity (r = -0.582*).


Keywords: Correlation, Weather parameters, Sucking pests, Predators, okra
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How to cite this article:

Babita Bhatt, Gouri Shankar Giri, A.K. Karnatak and Shivashankara. 2018. Effect of Weather Parameters on Population Fluctuation of Sucking Pests and Their Predators on Okra Crop.Int.J.Curr.Microbiol.App.Sci. 7(9): 757-762. doi: https://doi.org/10.20546/ijcmas.2018.709.091