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Vol. 10, Special Issue 5 (2021)

Comparative efficacy of Bacillus thuringiensis with botanicals and chemicals against gram pod borer Helicoverpa armigera (Hubner) (Lepidoptera: Noctuidae) on cowpea [Vigna unguiculata (L.) Walp.]

Author(s):
Sindhuja Yerrabala, Halavath Sai Kumar and Usha Yadav
Abstract:
The present field studies were conducted during Kharif 2019 at Central agriculture field, SHUATS (Sam Higginbottom University of Agriculture, Technology, and Sciences), Allahabad, Uttar Pradesh (India). The results revealed that all the eight treatments Bacillus thuringiensis, neem seed kernel extract (NSKE), garlic chilli kerosene extract (GCKE), neem leaf extract, neem oil, fipronil, cypermethrin reduced the infestation as compared to the untreated control. The minimum percent of infestation was observed in fipronil 5% SC (1.51) followed by cypermethrin 25 EC (1.79), Bacillus thuringiensis (2.20), neem seed kernel extract 5% (2.29), neem oil 5% (2.58), garlic chilli kerosene extract 5% (2.75), neem leaf extract 5% (3.10). In an assessment of the cost-benefit ratio, interesting results were achieved. Among the treatment studied, the best and most economical treatment was T6 fipronil 5 SC (1:1.90) followed by T7 cypermethrin 25EC (1:1.70), T1 Bacillus thuringiensis (1:1.60), T2 neem seed kernel extract (1:1.54), T5 neem oil (1:1.34), T3 garlic chilli kerosene extract (1:1.40), T4 neem leaf extract (1:1.10) as compared to T0 Control.
Pages: 709-712  |  393 Views  90 Downloads
How to cite this article:
Sindhuja Yerrabala, Halavath Sai Kumar and Usha Yadav. Comparative efficacy of Bacillus thuringiensis with botanicals and chemicals against gram pod borer Helicoverpa armigera (Hubner) (Lepidoptera: Noctuidae) on cowpea [Vigna unguiculata (L.) Walp.]. The Pharma Innovation Journal. 2021; 10(5S): 709-712.

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