Vol. 9, Issue 6 (2021)
Bio-efficacy of different EPN isolates against fall armyworm, Spodoptera frugiperda S.L. Smith
Author(s): Dadhe CG, Lavhe NV, Borkar SL and Bhoyar ES
Abstract: The overall results on bio-efficacy of different isolates EPN tested, Heterorhabditis spp. (CICR-Brown) isolate showed high infectivity and mortality of different instars of S. frugiperda. 2nd instar larvae showed highest mortality 91.42% when it was treated with the concentration 50IJs/20µl. However, in case of 3rd instar larvae of S. frugiperda the highest larval mortality observed was 97.14% from treatment concentration and 50IJs/20µl. Whereas 4th instar larvae showed highest mortality 92.42% when it was treated with the concentration of 50IJs/20µl in case of 5th instar larvae, the highest mortality observed was 82.85% when it was treated with treatment concentration 50IJs/20µl. However, the 6th instar larvae showed highest mortality 85.71% at treatment concentration 50IJs/20µl. Heterorhabditis spp. (PKV-1) and Steinernema spp. (CICR-White) showed highest mortality 85.71% at treatment concentration 50IJs/20µl in case of 2nd and 3rd instar larvae and highest mortality of 74.28% was observed in 50IJs/20µl concentration of Heterorhabditis spp. (PKV-Guava).
Pages: 58-62 | 636 Views 80 Downloads
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How to cite this article:
Dadhe CG, Lavhe NV, Borkar SL, Bhoyar ES. Bio-efficacy of different EPN isolates against fall armyworm, Spodoptera frugiperda S.L. Smith. Int J Chem Stud 2021;9(6):58-62.
