The development and life table parameters of Planococcus citri (Risso) were investigated at various temperatures ranging from 20 to 30°C. The total duration of development of female mealybug was 28.2 day at 20°C, 20.8 day at 25°C, and 20.05 day at 30°C. The total life cycles of P. citri females were 63.20, 51.10, and 41.55 days at 20, 25, and 30°C, respectively. The highest number of egg laying by female of P. citri was recorded at 30°C with an average of 340.1 eggs, while the average numbers of egg laying were 62.1 and 276.8 eggs per female at 20, and 25°C, respectively. The total life cycles of P. citri males were 43.2, 30.4, and 23.95 days at 20, 25, and 30°C, respectively. The total number of daughters per female (Ro) obtained at 20°C was 62.61 compared with 136.88, 380.00 and 339.62 daughters at 25, 27 and 30°C, respectively. The generation time (Gt) values of P. citri were 64.45, 50, 46.35 and 44.88 day for insect reared at 20, 25, 27 and 30°C, respectively. While intrinsic rate of natural increase (rm) values were 0.064, 0.09, 0.128 and 0.129 for insect reared at 20, 25, 27 and 30°C, respectively. The values of total days for population to double (Dt) decreased gradually with increasing degree of temperature. These findings showed citrus mealybug performances to be highly affected by temperature.