The present study was carried out at El-Kassasin district Ismailia Governorate, Egypt to evaluate the virulence of entomopathogenic fungus, Beauveria bassiana against of the red palm weevil under field conditions. Field trials showed that the injection of B. bassiana-9894 in infested palm trees gave successful recovery at light and median infestation level. On the other hand, dusting a date palm trees with B. bassiana-9894 caused an increase in adult weevil infestation and reduction of the palm trees infestation. The obtained results also showed that the chemical insecticides Chlorzan 48% EC and Diazinox 60% EC were highly effective against red palm weevil.