In laboratory condition of . 0 - . 0℃, the period of egg stage lasts an average of . - . 7 days. Development through the five nymphal instar is completed in 0. - . days. A generation lasts is 0 - 8 days and its generation mortality is . %.
In laboratory condition of . 0 - . 0℃, the period of egg stage lasts an average of . - . 7 days. Development through the five nymphal instar is completed in 0. - . days. A generation lasts is 0 - 8 days and its generation mortality is . %.
在实验室 .0～.0℃的平均温度下,卵期.—.7天,若虫期0.～ .天,世代历期0～8天,世代死亡率为. ％。