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P-ISSN: 2349-8528, E-ISSN: 2321-4902   |   Impact Factor: GIF: 0.565 NAAS Rating: 5.31 NEW

International Journal of Chemical Studies

Vol. 5, Issue 5 (2017)
Effect of botanical insecticides on the population of Maize cob borer Helicoverpa armigera Hubner


Author(s): Sanjay Kumar, Sonali Deole, YK Yadu and D Dash

Abstract: The present study was conducted during kharif 2015-16 at the Research cum Instructional Farm of Indira Gandhi Krishi Vishwavidyalaya, Raipur (C.G.).The minimum cob borer larvae was recorded in plots sprayed with Indoxacarb (0.23) which was at par with NSKE 5% @ 25 litres/ha, (0.27), followed by Neem oil 2% @ 10 litres/ha, (0.33), Karanj oil 2% @ 10 litres/ha, (0.37), Karanj seed powder @ 25 kg/ha, (0.33) and Chilli-Garlic solution @ 9 kg/ha (0.33) treated plots. The maximum cob borer larvae was recorded (0.40) with Chilli solution of @ 10 kg/ha, significantly superior over untreated control (0.87 larvae/cob). The maximum grain yield was recorded in plots treated with Indoxacarb 14.5 SC (30.05 q ha-1) The descending order among the botanical insecticides with regard to yield was Neem oil 2 % (26.03 q/ha), Karanj oil (25.50 q/ha), NSKE (24.83 q/ha), Karanj seed powder (23.58 q/ha) and chilli-garlic solution (21.91 q/ha), respectively. Whereas, chilli solution and chilli-garlic solution recorded lowest yield of 21.91 and 21.08 grain yield, respectively.

Pages: 2084-2089  |  387 Views  12 Downloads

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How to cite this article:
Sanjay Kumar, Sonali Deole, YK Yadu, D Dash. Effect of botanical insecticides on the population of Maize cob borer Helicoverpa armigera Hubner. Int J Chem Stud 2017;5(5):2084-2089.
International Journal of Chemical Studies