Insecticidal activity influence of beta-cypermethrin on the pathogenicity of Beauveria bassiana against Aleurodicus disperses

► Beta-cypermethrin and Beauveria bassiana showed a good potential for Aleurodicus disperses management. ► There was no influence of Beta-cypermethrin on cultural characters of B. bassiana. ► The combination showed a substantial level of synergism for A. disperses management. ► The level of synergism was affected by the concentration of Beta-cypermethrin. ► The mortalities caused by cumulative effect lasted for an extended period.