Field efficacy of Selected Insecticides against Pod Borer, Helicoverpa armigera (H.) in Chick Pea (Cicer arietinum Linnaeus)

Author: Chunchu Ravicharan and Anoorag R. Tayde

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Abstract

A field investigation was carried out in rabi season of 2022-2023 at Central Research Farm (CRF), Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, Uttar Pradesh, India. The experiment was laid in Randomised Block Design with seven treatments each replicated thrice viz., Indoxacarb 14.5% SC, Chlorantraniliprole 18.5% SC, Lamda cyhalothrin 5% EC, Bacillus thuringiensis 1×108 CFU, Emamectin benzoate 5% SG, Spinosad 45% SC, Metarhizium anisopliae 1×108 CFU and control plot. The results on Helicoverpa armigera larvae population after the first and second sprays proved that all of the treatments insecticides and biopesticides were significantly superior to the control. Among all treatments, Indoxacarb 14.5% SC (1.20 & 0.86) recorded lowest larval population of Helicoverpa armigera after both sprays followed by Chlorantraniliprole 18.5% SC (1.51 & 1.08), Emamectin benzoate 5% SG (1.68 & 1.26), Spinosad 45% SC (1.91 & 1.55), Lamda cyhalothrin (2.22 & 1.80), Bacillus thuringiensis 1×108 CFU (2.17 & 2.47), Metarhizium anisopliae 1×108 CFU (2.24 & 2.62) was the least effective among all treatments respectively. While, the highest yield 22.76 q/ha was obtained from the treatment Indoxacarb 14.5% SC as well as C: B ratio (1:4.04) followed by Chlorantraniliprole 18.5% SC (20.55 and 1:3.52), Emamectin benzoate 5% SG (19.68 and 1:3.45), Spinosad 45% SC (18.68 and 1:3.18), Lamda cyhalothrin 5% EC (16.3 and 1:2.94), Bacillus thuringiensis 1×108 CFU (14.4 and 1:2.58) and Metarhizium anisopliae 1×108 CFU (12.5 and 1:2.54).

Keywords

Bacillus thuringiensis 1×108 CFU, Chickpea, Insecticides, Helicoverpa armigera, Metarhizium anisopliae 1×108 CFU

Conclusion

From the critical analysis of the present findings, it can be concluded that, among all the treatments Indoxacarb 14.5%SC is more effective in controlling larval population of Helicoverpa armigera followed by chlorantraniliprole 18.5% SC, Emamectin benzoate 5% SG, Spinosad 45%SC, Lamda cyhalothrin 5%EC, Bacillus thuringiensis 1×108 CFU, and Metarhizium anisopliae 1×108 CFU. Among the treatments studied, Indoxacarb 14.5% SC gave the highest cost benefit ratio (1:4.04) and marketing yield (22.7q/ha) followed by chlorantraniliprole 18.5%SC (1: 3.52 and 20.55q/ha), Emamectin benzoate (1:3.45 and 19.68q/ha), Spinosad 45%SC(1:3.18 and 18.68q/ha), Lamda cyhalothrin 5% EC (1:2.94 and 16.3q/ha), Bacillus thuringiensis 1×108 CFU (1:2.58 and 14.4q/ha) and Metarhizium anisopliae 1×108 CFU (1:2.54 and 12.5q/ha) respectively as such more trails are required in future to validate the findings

References

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How to cite this article

Chunchu Ravicharan and Anoorag R. Tayde (2023). Field efficacy of Selected Insecticides against Pod Borer, Helicoverpa armigera (H.) in Chick Pea (Cicer arietinum Linnaeus). Biological Forum – An International Journal, 15(6): 220-223.