Figure 1. Relationship between survival rates of the female and male adults of Bemisia tabaci biotype B and Trialeurodes vaporariorum after exposure to different temperatures for 1 h. In A and B, the upper case letters over the bars indicate the survival rates at the six heat shock temperatures differ significantly at P <0.05 for females, and the lower case letter, for males for each whitefly species; the * indicates that the survival rates differ significantly between females and males (SNK, SAS Institute 2006). In C and D, the curves show the relationship between heat-shock temperatures and survival of female and male adults of the two whitefly species, and fit an nonlinear model, y = 1/(a + be^x); where, y is survival rate (%), and x is heat-shock temperature.