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室内研究了５个温度条件（１５、２０、２５、３０和３５±０．５℃）下，七星瓢虫（Ｃｏｃｉｎｅｌａｓｅｐｔｅｍｐｕｎｃｔａｔａ）５个捕食虫态对棉蚜（Ａｐｈｉｓｇｏｓｙｐｉ）３个体积组的功能反应。测试温度范围内，瞬时攻击率（ｓｅａｒｃｈｒａｔｅ）和处置时间（ｈａｎ－ｄｌｉｎｇｔｉｍｅ）随捕食者龄期的增长而增加；每一捕食者虫态内，搜索率随猎物体积的增加而上升，而处置率则下降；搜索率随温度增加直线上升，而处置率则呈曲线上升。田间罩笼内研究了５个捕食者虫态对棉蚜混合种群的捕食功能，其捕食率远远低于室内实验。应用复合捕食方程并结合叶面积的影响对七星瓢虫捕食棉蚜的功能进行了模拟研究，且模拟值与观察值吻合程度较好。本研究表明，虽然七星瓢虫—棉蚜系统比较复杂，可以应用本研究探讨的方法建立模拟模型，以准确预测田间棉蚜的种群动态。
The functional responses of 5 predators of Cocinelase ptempunctata to 3 volume groups of Aphis gossypii were studied indoors under 5 temperature conditions (15, 20, 25, 30 and 35 ± 0.5 ℃). The searchrate and han-dlingtime increased with the increase of predator’s age in the test temperature range. In each predator’s state, the search rate increased with the increase of prey’s volume, and the disposal rate The search rate increases linearly with increasing temperature, while the treatment rate rises sharply. In the field cage, the predation function of five predatory bugs on the mixed population of cotton aphid was studied. The predation rate was far lower than that of indoor experiments. The complex predation equation and the influence of leaf area were used to simulate the function of ladybird ladybird predation on cotton aphid, and the simulated values were in good agreement with the observed values. This study shows that although the Coccinella septempunctata-Aphis gossypii is more complex, the simulation model can be established by using the method discussed in this study to accurately predict the population dynamics of cotton aphid in the field.