Efficacy of insect pathogenic fungi on mortality and development of Rhynchophorus ferrugineus (Olivier)‎

الملخص EN

Fifteen different isolates of entomopathogenic fungi including Beauveria bassiana, B.

brongniartii, Metarhizium anisopliae and Purpureocillium lilacinum were tested for their effectiveness against different developmental stages of red palm weevil R.

ferrugineus.

After 21 days of exposure, B.

bassiana isolates (WG-23 and WG-25) caused 100% mortality in larvae while only WG-25 resulted in 100% mortality against R.

ferrugineus adults.

Furthermore, WG-25 reduced egg hatching up to 81.49% at 1 × 108 conidia ml-1