Evaluation of Indigenous Strains of Entomopathogenic Nematodes, in Combination with Low-Toxicity Insecticides at Low and High Dosages South American Tomato Pinworm, Tuta absoluta (Meyrick) (Lepidoptera, Gelechiidae)

Authors

  • Indra Kumar Kasi Dept. of Entomology, Dr. Yashwant Singh Parmar University of Horticulture and Forestry, Himachal Pradesh (173 230), India
  • Kanchhi Maya Waiba Dept. of Horticulture, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh (221 005), India
  • Hemant Kumar Kashyap Dept. of Entomology,Dr. Yashwant Singh Parmar University of Horticulture and Forestry, Himachal Pradesh (173 230), India
  • Abhishek Bhat Dept. of Entomology, Dr. Yashwant Singh Parmar University of Horticulture and Forestry, Himachal Pradesh (173 230), India
  • Gurveer Singh Dept. of Entomology, Punjab Agricultural University, Ludhiana, Punjab (141 027), India
  • Bhawna Saroia Dept. of Entomology, Punjab Agricultural University, Ludhiana, Punjab (141 027), India
  • Sristi Dept. of Vegetable Science, Dr. Yashwant Singh Parmar University of Horticulture and Forestry, Himachal Pradesh (173 230), India
  • Robin Dept. of Entomology, Punjab Agricultural University, Ludhiana, Punjab (141 027), India https://orcid.org/0000-0001-9072-2813
  • Elahe Rostami Institute for Biological Research at Institute of Quality Standards & Testing Technology for Agro-Products, Fujian Academy of Agricultural Sciences (FAAS), China

DOI:

https://doi.org/10.23910/1.2022.3068

Keywords:

Dosages, efficacy, larvae mortality, synergistic effect, Tuta absoluta

Abstract

The laboratories experiments were conducted during  September, 2021 to test the pathogenicity of two EPNs species S. feltiae and H. bacteriophora at different (IJs cm-2) concentrations against Tuta absoluta (Meyrick)(Lepidoptera, Gelechiidae). The experimental location in Department of Entomology, Nematology Laboratory, Dr. Yashwant Singh Parmar University of Horticulture and Forestry, Solan, Himachal Pradesh, India. The native isolate was obtained from soil samples, collected from survey was carried out in Mid-hills of the North Himalayas, India, to investigate the diversity and frequency of entomopathogenic nematodes (EPNs). Our objective was to evaluate the efficacy of S. feltiae (HR1) and H. bacteriophora (HR2) in combination with low-toxicity insecticides at low and high dosages to control final-instar larvae in bioassays. The use of S. feltiae+Spinosad or chlorantraniliprole caused larvae mortality of over 100% at 96 h and second bioagent H. bacteriophora+Spinosad and chlorantraniliprole mortality of over 97.50% at 96 h at the high dose and should be included as a least toxic strategy to control T. absoluta. Our results showed that T. absoluta were suitable hosts for local indigenous strains performed good potential for biological control against invasive species. In combination with low-toxicity insecticides at low and high dosages to control final-instar larvae mortality of over 100% at 96 h at the high dose and should be included as a least toxic strategy to control tomato pinworm.

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Published

2022-12-18

How to Cite

1.
Kasi IK, Waiba KM, Kashyap HK, Bhat A, Singh G, Saroia B, et al. Evaluation of Indigenous Strains of Entomopathogenic Nematodes, in Combination with Low-Toxicity Insecticides at Low and High Dosages South American Tomato Pinworm, Tuta absoluta (Meyrick) (Lepidoptera, Gelechiidae). IJBSM [Internet]. 2022 Dec. 18 [cited 2024 May 25];13(Dec, 12):1425-32. Available from: https://ojs.pphouse.org/index.php/IJBSM/article/view/4366

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