Host Suitability of Trichogrammatoidea Bactrae Nagaraja on Different Host Eggs

Year : 2025 | Volume : 02 | Issue : 01 | Page : 1 6
    By

    Jasti Sri Vishnu Murthy,

  • N.S. Satpute,

  • Mani Chellappan,

  • Ranjith M.T,

  1. Student, Department of Agricultural Entomology Biological Control Laboratory, Institute, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra, India
  2. Associate Professor, Department of Agricultural Entomology, Biological Control Laboratory Institute, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola,, Maharashtra, India
  3. Professor, Agricultural Entomology, College of Agriculture, Vellanikkara, Kerala Agricultural University, Kerala, India
  4. Assistant Professor, Department of Agricultural Entomology, College of Agriculture, Vellanikkara, Kerala, India

Abstract

Trichogrammatoidea bactrae Nagaraja (Hymenoptera: Trichogrammatoidea) is a highly effective egg parasitoid for controlling lepidopteran pests. This study evaluates its host suitability and biological characteristics across various lepidopteran eggs, specifically Corcyra cephalonica Stainton (Lepidoptera: Pyralidae), Spodoptera litura Fabricius (Lepidoptera: Noctuidae), Helicoverpa armigera Hubner (Lepidoptera: Noctuidae), Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae), and Pectinophora gossypiella Saunders (Lepidoptera: Gelechiidae). The results indicate that T. bactrae shows the highest parasitization rates on C. cephalonica, followed by P. gossypiella, S. litura, H. armigera, with the lowest rate occurring on S. frugiperda. The adult emergence rate for T. bactrae is notably highest on Corcyra eggs at 92.95%, while it drops to 73.55% on S. frugiperda. The total developmental period for T. bactrae ranges from 7.22 days on C. cephalonica to 8.7 days on S. litura. Moreover, female T. bactrae consistently demonstrates a longer total life cycle compared to their male counterparts across all studied species, with the longest life cycle observed in S. litura and the shortest in C. cephalonica. Given these findings, C. cephalonica emerges as the optimal host for the factitious rearing of T. bactrae. Additionally, T. bactrae is highlighted as the most effective option for parasitizing pink bollworm eggs.

Keywords: Host eggs, host suitability Trichogrammatoidea bactrae, Corcyra cephalonica, Helicoverpa armigera, Pectinophora gossypiella, Spodoptera litura, Spodoptera frugiperda, development and parasitization

[This article belongs to International Journal of Insects ]

How to cite this article:
Jasti Sri Vishnu Murthy, N.S. Satpute, Mani Chellappan, Ranjith M.T. Host Suitability of Trichogrammatoidea Bactrae Nagaraja on Different Host Eggs. International Journal of Insects. 2024; 02(01):1-6.
How to cite this URL:
Jasti Sri Vishnu Murthy, N.S. Satpute, Mani Chellappan, Ranjith M.T. Host Suitability of Trichogrammatoidea Bactrae Nagaraja on Different Host Eggs. International Journal of Insects. 2024; 02(01):1-6. Available from: https://journals.stmjournals.com/iji/article=2024/view=191462


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Regular Issue Subscription Original Research
Volume 02
Issue 01
Received 23/12/2024
Accepted 27/12/2024
Published 30/12/2024
Publication Time 7 Days
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