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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 2019: 96.39
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39
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.2017.6(8): 1330-1338
DOI: https://doi.org/10.20546/ijcmas.2017.608.162


Evaluation of Some Insecticides and Biopesticides for Management of Barley Aphid (Rhopalosiphum maidis)
Pawan Kumar Choudhary, Suresh Jakhar and K.C. Kumawat
Department of Entomology, S.K.N Agriculture University, Jobner-303328, Rajasthan
*Corresponding author
Abstract:

The bioefficacy of the treatments evaluated against aphid on barley crop showed that lowest population of 19.32, 20.81, 20.88, 20.95 and 21.13/ tiller was recorded in acetamiprid (0.004%), imidacloprid (0.005%), fipronil (0.01%), thiamethoxam (0.005%) and dimethoate (0.03), respectively and were found statistically at par in their efficacy. The Beauveria bassiana (1 g/ l), NSKE (5.0%), imidacloprid (8 g/ kg), thiamethaxam (8 g/ kg) and acetamiprid (8 g/ kg) registered 42.57, 42.97, 48.47, 49.26 and 51.60 aphids/ tiller, respectively. The highest aphid population was recorded in untreated control (81.23/ tiller). The data of seed yield revealed that maximum yield of 34.25 q ha-1 was recorded in the plots treated with imidacloprid (0.005%) followed by acetamiprid (0.004%), thiamethoxam (0.005%), fipronil (0.01%) and dimethoate (0.03%) which gave 33.85, 33.01, 32.90 and 32.58 q ha-1 seed yield, respectively and all these found statistically at par each other and proved significantly superior over rest of the treatments. The maximum net profit (Rs. 11444 ha-1) was recorded from plots treated with imidacloprid (0.005%) which gave benefit cost ratio of 7.43 followed by acetamiprid (0.004%), imidacloprid (0.005%), thiamethoxam (0.005) and dimethoate (0.03%) with benefit cost ratio of 8.66, 7.43, 5.42 and 8.04, respectively.


Keywords: Insecticides, Biopesticides, Barley aphid, Rhopalosiphum maidis.
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How to cite this article:

Pawan Kumar Choudhary, Suresh Jakhar and Kumawat, K.C. 2017. Evaluation of Some Insecticides and Biopesticides for Management of Barley Aphid (Rhopalosiphum maidis).Int.J.Curr.Microbiol.App.Sci. 6(8): 1330-1338. doi: https://doi.org/10.20546/ijcmas.2017.608.162