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采用三元一次正交组合实验设计，在１８％Ｏ２浓度下研究了ＣＯ２浓度２５～３５％（Ｘ２）、溴氰菊酯３．５４×１０４～３．５４×１０４μｇ／（Ｘ３）和温度２０～３０℃（Ｘ１）不同水平组合对嗜卷书虱（Ｌｉｐｏｓｃｅｌｉｓｂｏｓｔｒｙｃｈｏｐｈｉｌａ）的急性致死作用。结果表明，ＣＯ２浓度是影响嗜卷书虱半数致死时间（ＬＴ５０）变化的主要因素，其次是溴氰菊酯，然后是温度因素。３因素各编码水平对嗜卷书虱的半数致死时间（ＬＴ５０，Ｙ）的回归关系式为：Ｙ＝６．５４７－０．７０１Ｘ１－２．１８１Ｘ２－１．２０６Ｘ３＋０．６４８Ｘ１Ｘ２在高浓度的ＣＯ２中ＣＯ２是导致嗜卷书虱死亡的主要因素。在低浓度ＣＯ２中温度升高对嗜卷书虱ＬＴ５０影响显著，随着ＣＯ２浓度升高温度因素的作用逐渐减小，ＣＯ２和温度之间存在着显著的交互作用；在一定浓度的气调中增加适当浓度的溴氰菊酯就可有效地控制该虫的危害。
The experiment was carried out by orthogonal design of ternary system. Under the concentration of 18% O2, the concentration of CO2 was 25-35% (X2), deltamethrin 3.54 × 10-4 ~ 3.54 × 10-4μg / (X3 ) And the combination of different levels of temperature 20 ~ 30 ℃ (X1) on Liposcelis botoschophila. The results showed that CO2 concentration was the main factor influencing the change of half lethal time (LT50), followed by deltamethrin and then temperature. The regression equation of each factor coding level to the median lethal time (LT50, Y) of the tick lice is: Y = 6.547-0.701X1-2.181X2-1.206X3 + 0.648X1X2 In the high concentration of CO2 CO2 is the main factor leading to the death of the tick lice. In the low concentration of CO2, the temperature had a significant effect on LT50, and with the decrease of temperature, the interaction between CO2 and temperature was significant. With a certain concentration of atmosphere Increasing the proper concentration of deltamethrin can effectively control the harm of the insect.