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


  • 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



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


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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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.



Research Articles


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