[Aim] The "bare type" and "loaded type" cryptic species of Aleyrodes proletella (Hemiptera:Aleyrodidae) are new insect pests that have recently invaded China. In order to research the sensitivity level of these two biotypes to different insecticides, laboratory and field efficany tests were performed.[Method] Leaf dipping and watering spraying method were used to test the indoor toxicity and field efficacies of 14 different insecticides on nymphs and adults both "bare type" and "loaded type" of A. proletella.[Result] Of the tested 14 insecticides, abamectin had the highest toxicity to adults of both biotypes, at LC₅₀ of 0.57 and 3.54 mg·L^-1, respectively. Abamectin-aminomethyl had the highest toxicity to nymphs (LC₅₀ of 0.65 and 2.29 mg·L^-1). The results of field efficacy trials showed that 7 d after treatment, 5% abamectin EW had the best control effect aginst adults of the "bare type" and the nymphs of the "loaded type" (95.77% and 94.86%, respectively). The best control effect on adults of "loaded type"was after treatment with 22% sulfoxaflor WG (92.07% mortalty). Against nymphs of "bare type", 60% acetamiprid WP had the best control effect (95.65% mortality).[Conclusion] The most effective treatments were provided by 5% abamectin EW, 22% sulfoxaflor WG and 60% acetamiprid WP under field conditions. Resistance monitoring should accompany the treatments.