Objective To investigate the insecticidal effect of three commercially available aerosols on Cimex lectularius and Attagenus unicolor japonicus, and to investigate the sensitivity of these two types of sanitary pests to different insecticidal aerosols. Methods According to the national standard GB/T 13917.2-2009, the cylinder method was used to determine the knockdown rate of C. lectularius and A. unicolor japonicus after 20-min exposure to the aerosols, and the mortality rate at 48 h and 72 h were observed. The Chi-square test was used to compare the 20-min knockdown rate and mortality rate between different groups. Results In the killing test to A. unicolor japonicus, the 20-min knockdown rate, and the mortality rate at 48 h and 72 h of A. unicolor japonicus were all 100% after exposure to the three commercially available aerosols; in the killing test to C. lectularius, the knockdown rates of C. lectularius were 100%, 98.33%, and 90.00%, respectively, after 20-min exposure to No. 1, No. 2, and No.3 aerosols, but the mortality rates of C. lectularius were 100% at 48 h and 72 h after exposure to the three aerosols. There was no significant difference in 20-min knockdown rate between different groups (χ2=3.000, P>0.05). Conclusion The killing effect of three commercially available aerosols on C. lectularius and A. unicolor japonicus measured according to the method of the national standard GB/T 13917.2-2009 showed that relatively high knockdown and killing rates can be achieved.
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