Vol. 12, Issue 3 (2023)

Author(s):
Sharad Kumar Meena, VK Bhamare, Vinod Kumar, Laxman Singh Saini and Thalluri Revanth Sri

Abstract:
The present study examines the mortality in three different species of hairy caterpillars infesting the sorghum. The mortality in early and late instar larvae of Orgyia sp. infesting rabi sorghum was observed to be 16.64 and 20.00 per cent, respectively due to NPV during first generation while, the mortality in late instar larvae of S. scintillans infesting rabi sorghum was observed to be 20.00 per cent due to unknown reasons. While, in early instar larval stage and pupal stage mortality was not observed. In the case of O. mendosa the mortality in early instar larvae infesting rabi sorghum was observed to be 40.00 per cent due to NPV. The total ‘K’ for first generation of Orgyia sp., S. scintillans and O. mendosa was 0.476, 0.397 and 0.560, respectively.