This experiment were carried out to study the effect of treatment of newly hatched (neonate) larvae and pupae of the pink bollworm, Pectinophora  gossypiella (Saunders) (Lepidoptera: Gelechiidae) with different entomopathogenic fungi; Biover (Beauveria bassiana) and Bioranza (Metarhizium anisoplae) was investigated under laboratory conditions of 27 ± 1º C and 65 % ± 10 % R.H. The results show that P. Gossypiella was susceptible to both fungi. LC₅₀ values obtained were1.42 and 0.98 g\lfor P. Gossypiella larvae treated with different concentrations of B.bassiana and M.anisopilae, respectively. The biological aspects of P. gossypiella were affected when treating the newly hatched larvae with the LC₅₀'s of both fungi. Results generally revealed changes in the different biological aspects (larval duration, pupation percentage, pupal duration and the percentage of adult emergence). Determine the effect of B. bassiana and M. anisopliae on the prey consumption rate of Oriusa lbidipennis to pink bollworm eggs.