Entomopathogenicity of Beauveria bassiana (Balsamo) Vuillemin against Hyadaphis coriandri (Das)

The studies revealed that, the cumulative corrected mortality (CCM) ranged from 22.8–45.5% at 24 hrs and 58.4–90.9% on 7^th DAT. The mortality in treated aphids increased with increase in conidial spore concentration. While, the LC₅₀ and LT₅₀ were found to be 1.7 X 10⁶ spores/ml and 69.15–147.82 hrs. respectively, with achieving 50% mortality of H. coriandri at 69.15 hrs with dose of 1X 10¹⁰ spores/ml. Median lethal time (LT₅₀) values were found to be inversely proportional to the spore concentration of Beauveria bassiana.