Synergistic effects of insecticide and lactic acid bacteria formulation on Spodoptera litura and beneficial spider in cauliflower under field condition

M Jayaveni; Y S J T Edward; A Suganthi; M Kannan; R Anandham; R Kannan

doi:10.14719/pst.7735

Authors

M Jayaveni Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore 641 003, Tamil Nadu India https://orcid.org/0009-0009-9885-4744
Y S J T Edward Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore 641 003, Tamil Nadu India https://orcid.org/0000-0003-3471-0089
A Suganthi Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore 641 003, Tamil Nadu India https://orcid.org/0000-0001-7013-4459
M Kannan Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore 641 003, Tamil Nadu India https://orcid.org/0000-0002-3439-9254
R Anandham Department of Microbiology, Tamil Nadu Agricultural University, Coimbatore 641 003, Tamil Nadu, India
R Kannan Department of Plant Pathology, Tamil Nadu Agricultural University, Coimbatore 641 003, Tamil Nadu, India https://orcid.org/0000-0003-3038-8782

DOI:

https://doi.org/10.14719/pst.7735

Keywords:

insecticides, lactic acid bacteria formulation, S. litura, spiders

Abstract

Cauliflower (Brassica oleracea var. botrytis) is an important vegetable crop that is susceptible to various insect pests, including the polyphagous lepidopteran pest, Spodoptera litura. This research paper presents an integrated initiative of managing S. litura in cauliflower using a combination of selective insecticides and the co-application of lactic acid bacteria (LAB). Field experiments were conducted to evaluate the bio-efficacy of emamectin benzoate 05 % SG, tolfenpyrad 15 % EC and chlorantraniliprole 18.5 % SC, both with and without the addition of LAB @ 5 % during kharif and rabi seasons of 2024. The results demonstrated that the co-application of chlorantraniliprole 18.5 % SC at 10 g a.i. ha-1, with LAB 5 %, was the most effective strategy for managing S. litura, as it led to a significant reduction in leaf damage (14.64-16.85 %) (p<0.05) and an enhanced natural enemy population. Additionally, the application of LAB alone was found to be effective in attracting predatory spiders (8.66-8.27 spiders per ten plants) (p<0.05) to the cauliflower plants through the induction of volatile compounds by the epiphytic microbiome. The experimental data were subjected to ANOVA analysis using SPSS software with square root transformation for spider population data and arc sine transformation for S. litura data. The treatments were found to be statistically significant. These findings suggest that integrating selective insecticides and lactic acid bacteria can provide a cost- effective and sustainable approach to managing S. litura in cauliflower production, offering a promising alternative to the overreliance on chemical pesticides.

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References

National Nutrient Database Release. USDA. 2018. [cited on 2025 Feb 14]. https://fdc.nal.usda.gov/fdc-app.html

INDIASTAT. 2018. [Internet]. New Delhi: INDIASTAT; [cited 2025 Feb 14]. https://www.indiastat.com.

Sydnor T, Kuhar T, Del-Pozo A. Virginia Cooperative Extension. (n.d.). Managing the Diamondback Moth in Cole Crops.Virginia Polytechnic Institute and State University. Blacksburg, USA; 2024

Khatun P, Islam A, Sachi S, Islam MZ, Islam P. Pesticides in vegetable production in Bangladesh: A systemic review of contamination levels and associated health risks in the last decade. Toxicol Rep. 2023;11:199–211. https://doi.org/10.1016/j.toxrep.2023.09.003

Zhang YH, Xu D, Liu JQ, Zhao XH. Enhanced degradation of five organophosphorus pesticides in skimmed milk by lactic acid bacteria and its potential relationship with phosphatase production. Food Chem. 2014;164:173–8. https://doi.org/10.1016/j.foodchem.2014.05.059

Arulkumar G, Edward YS, Bhuvaneswari K, Jeyaprakash P, Sekaran NC, Senthilkumar M. Effects of flubendiamide and a lactic acid bacterial formulation on stem borer, Scirpophaga incertulas Walker and its parasitoids in rice. Int J Curr Microbiol Appl Sci. 2019; 8(11):613–33. https://doi.org/10.20546/ijcmas.2019.811.075

Arulkumar G, Edward YJ, Bhuvaneswari K, Sekaran NC, Jeyaprakash P, Senthilkumar M. Effect of flubendiamide and a lactic acid bacterial formulation on leaffolder, Cnaphalocrocis medinalis Guenee and natural enemies in rice. J Entomol Zool Stud. 2019;7(5):1156–62. https://doi.org/10.20546/ijcmas.2019.811.075

Gomez KA, Gomez AA. Statistical procedures for agricultural research. A Wiley International Science Publication, John Wiley and Sons, New Delhi, 1984; 680 p.

Jayaveni M, Edward YSJT, Suganthi A, Kannan M, Anandham R, Kannan R, Rakesh T. Synergistic effects of insecticides and lactic acid bacterial formulation on Plutella xylostella (L.) and beneficial coccinellids in cauliflower. Plant Sci Today. 2025;12(1). https://doi.org/10.14719/pst.6099

Dabhi MR, Patel SR, Parmar HC, Kalola DA. Relative toxicity of noval insecticides against leaf eating caterpillar, Spodoptera litura (Fabricius) infesting soybean. J Entomol Zool Stud. 2020;8(3):748–52. https://doi.org/10.22271/j.ento.2020.v8.i4c.8153

Chowdary NM, Sharma PC. Bio efficacy of newer insecticides against Plutella xylostella (L.) infesting cabbage. HJAR. 2019;45(1):46–50.

Anuradha P, Madhu Sudhanan E, Priyanka M, Emaiya R, Karthik P, Suganthi A, Krishnamoorthy SV. Determination of chlorantraniliprole for managing Helicoverpa armigera and Spodoptera litura in cotton ecosystem. Environ Res. 2023;117301. https://doi.org/10.1016/j.envres.2023.117301

Kumar NN, Acharya MF, Srinivasulu DV, Sudarshan P. Bio efficacy of modern insecticides against Spodoptera litura Fabricius on groundnut. Int J Agric Innov Res. 2015;4(3):2319.

Beena R, Selvi V. Bioefficacy of insecticides used against diamond back moth and their potential impact on natural enemies in cauliflower. J Appl Nat Sci. 2022;1240–5. https://doi.org/10.31018/jans.v14i4.3816

Taggar GK, Cheema HK, Kooner BS. Bio-efficacy of certain insecticides against tobacco caterpillar, Spodoptera litura (Fabricius) infesting soybean in Punjab. Crop Res. 2011;42(1-3):284–8.