The spread of Allocaridala maleyensis (Crawford) in durian fields has a great economic impact on durian farmers. Allocaridala maleyensis can invade durian at every stage from the beginning of young leaves until harvesting. Thus, it is necessary to select indigenous entomopathogenic fungi that have the potential to control A. maleyensis in durian fields. The objective of this research was to select indigenous Beauveria bassiana with the ability to control A. maleyensis in durian plantation areas in the eastern region. The insect pest samples were collected from durian orchards in 3 provinces: Chanthaburi, Trat, and Rayong provinces. Fungi isolated from the collected insect pests were then identified and classified by fungi morphology. The isolated fungi were classified as Beauveria bassiana and used as tested fungi to control A. maleyensis. The results showed that B. bassiana at 104 , 106, and 108 spore/ml were able to inhibit the growth of A. maleyensis. Beauveria bassiana at 108 spore/ml completely inhibit mortality nymph (100%) and inhibited adult A. maleyensis (88%). It can be concluded that indigenous B. bassiana should be sprayed on rooster aphids at the nymph stage rather than at the adult stage because the nymph is susceptible to the infestation of entomopathogenic fungi.