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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 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
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Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(8): 4405-4411
DOI: https://doi.org/10.20546/ijcmas.2018.708.463


Comparative Efficacy of Some Bio-Rational and Chemical Insecticides against Whitefly Bemisia tabaci (Gennadius) on Okra Abelmoschus esculentus (L.) Moench
Sumit Kumar Singh* and Sasya Thakur
Department of Entomology, Sam Higginbottom University of Agriculture, Technology and Sciences, Allahabad - 211 007, India
*Corresponding author
Abstract:

In this study the field trial was conducted to determine the effect of bio-rational and chemical insecticides and benefit cost ratioat the Central field, Department of Entomology, Sam Higginbottom University of Agriculture Technology and Sciences, Allahabad during kharif 2016. Seven treatments were evaluated against whitefly Bemisia tabaci (Gennadius) viz., T1-Neem oil 0.03%, T2-Verticillum lecanii, T3-Metarhizium anisopliae, T4-Beauveria bassiana, T5-Acetamiprid 20% SP,T6-Imidacloprid 17.8% SL, T7-Triazophos 40% EC. Studies revealed that the lowest infestation of whitefly and incremental benefit cost ratio were observed in Imidacloprid 17.8% SL (1.25 whiteflies/3leaves and 1:9.33)was statistically significant to remaining treatments, followed by Acetamiprid 20% SP (1.64 whiteflies/3leaves and 1:9.00), Triazophos 40% EC (2.31 whiteflies/3leaves and 1:8.48), Neem oil 0.03% (3.95 whiteflies/3leaves and 1:7.19), Verticilium lecanii (4.72 whiteflies/3leaves and 1:4.60), Beauveria bassiana (5.64 whiteflies/3leaves and 1:5.84) and Metarhizium anisopliae (6.04 whiteflies/3leaves and 1:5.60) respectively. The highest yield was recorded in Imidacloprid 17.8% SL (133.8q/ha) then followed by Acetamiprid 20% SP (121.4 q/ha), Triazophos 40% EC (116.12 q/ha), Neem oil (98.46 q/ha), Verticillum lecanii (81.43 q/ha), Beauveria bassiana (78.62 q/ha), Metarhizium anisopliae (77.82 q/ha), as compared to control (62.56q/h).


Keywords: Benefit cost ratio, Bio-rational, Chemical insecticides, Okra, Whitefly
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How to cite this article:

Sumit Kumar Singh and Sasya Thakur. 2018. Comparative Efficacy of Some Bio-Rational and Chemical Insecticides against Whitefly Bemisia tabaci (Gennadius) on Okra Abelmoschus esculentus (L.) Moench.Int.J.Curr.Microbiol.App.Sci. 7(8): 4405-4411. doi: https://doi.org/10.20546/ijcmas.2018.708.463