LAUSR

The objective of this study was to assess the survivorship and fecundity of the newly emerged females of the predatory species, Cryptolaemus montrouzieri Mulsant (Coleoptera: Coccinellidae), exposed to LC50 of the entomopathogenic fungi (EPF); Beauveria bassiana and Metarhizium anisopliae under laboratory status. The virulence of the EPF was evaluated, using the dipping implementation technique. LC50 values were determined based on the concentration-response analysis. The LC50 value for the predator’s females was 3 × 109 and 6 × 108 conidia/ml for B. bassiana and M. anisopliae, respectively. Life table and population parameters were the models to estimate survivorship of each stage of C. montrouzieri. Results demonstrated that the highest mortality rates 20.35, 27.40, and 29.45% occurred during the larval stage, whereas the total mortality rates attained 28.57, 38.61, and 44.66% for the control, B. bassiana, and M. anisopliae, respectively. For fecundity, the final proliferation average (R0) of the population was 338.82, 155.99, and 115.55; mean generation time (T) was 43.76, 60.95, and 76.78; natural increase (rm) was 0.13, 0.08, and 0.06; the steady rate of increase (λ) was 1.14, 1.08, and 1.06; and the required time to double the population (DT) was 5.33, 8.66, and 11.55 days for the control, B. bassiana, and M. anisopliae, respectively.