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Methanolic Leaf Extracts of Certain Plants as Larvicides against Teak skeletonizer, Eutectona machaeralis

1, 2, 1

  1. 1Department of Zoology, Entomology Laboratory, Osmania University, Hyderabad, Telangana, India.
  2. 2Department of Zoology, Tara Government Degree and PG College, Sangareddy, Telangana, India.

CORRESPONDENCE

Mahesh Lingakari

Department of Zoology, Tara Government Degree and PG College, Sangareddy, Telangana, INDIA.

maheshlingakari@gmail.com

Received: 11-01-2024; Revised: 14-02-2024; Accepted: 18-04-2024.

Volume 13, Issue 1 · pp. 61-66 · 2024 · DOI: 10.5530/ajbls.2024.13.8

ABSTRACT

Aim: The coveted Indian hardwood teak (Tectona grandis) grows well in particular tropical temperatures and soil types. With 8.9 million hectares, India's teak forests are essential to the luxury market. Indian teak trees are seriously threatened by the teak skeletonizer (Eutectona machaeralis Walker), which causes extensive defoliation. As a result, less timber is produced and trees grow slower.Materials and Methods: In this work, methanolic leaf extracts of Wrightia tinctoria, Murraya koenigii and Prosopis juliflora were tested for their larvicidal efficacy against the fourth instar larvae of E. machaeralis.Results: All extracts had high levels of alkaloids, flavonoids and polyphenols, according to phytochemical analyses. The findings showed that mortality rates were concentration-dependent. M. koenigii had the maximum effectiveness, with mortality rates of 61.43±1.76% at 200 ppm and 92.86±2.40% at 400 ppm.Conclusion: These results highlight the potential of these plant extracts as efficient, environmentally beneficial teak pest management options.

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    Maddala, M., Lingakari, M., & Bandi, S. (2024). Methanolic Leaf Extracts of Certain Plants as Larvicides against Teak skeletonizer, Eutectona machaeralis. Asian Journal of Biological and Life Sciences, 13(1), 61-66. https://doi.org/10.5530/ajbls.2024.13.8

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    © 2024 Author(s)

    This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution and reproduction in any medium, provided the original author and source are credited. CC BY 4.0