Survival and Development of Helicoverpa armigera (Hubner) On Public Sector Bt Cotton Hybrids

Authors

  • B. A. Thakre Department of Agricultural Entomology, College of Agriculture, Latur 413512, Maharashtra
  • V. K. Bhamare Department of Agricultural Entomology, College of Agriculture, Latur 413512, Maharashtra

DOI:

https://doi.org/10.55446/IJE.2022.684

Keywords:

Helicoverpa armigera, Bt cotton, hybrids, adult emergence, diet, bioassay, larval weight, pupal weight, pupation, emergence, growth, development

Abstract

Laboratory experiment was conducted to find out the survival and development of Helicoverpa armigera (Hubner) on public sector Bt cotton hybrids (NHH-44 BG II, PKV Hy-2 BG II, PDKV-JKAL-116 BG II, G. COT-10 Hy. BG II and G. COT-08 Hy. BG II). Instarwise observations were documented on leaves, squares, young bolls and mature bolls at 60-80, 90-110, 120-140 and 150-170 days old crop, respectively. The results revealed that the early instars of H. armigera exhibited higher larval mortality than the later instars. The surviving larvae revealed adverse effect on many parameters viz., larval and pupal weight, % pupation and adult emergence indicating low growth and survival indices.

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Published

2023-09-01

How to Cite

B. A. Thakre, & V. K. Bhamare. (2023). Survival and Development of <i>Helicoverpa armigera</i> (Hubner) On Public Sector <i>Bt</i> Cotton Hybrids. Indian Journal of Entomology, 85(3), 572–577. https://doi.org/10.55446/IJE.2022.684

Issue

Volume 85, Issue 3, September 2023

Section

Research Articles
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