Gerami S, Jahromi K T, Ashouri A, Rasoulian G, Heidari A
Faculty of Agriculture, Tehran University, Karaj.
Commun Agric Appl Biol Sci. 2005;70(4):779-85.
In this study we report the sublethal effects of recommended concentrations of imidacloprid and pymetrozine on cotton aphid's reproduction. Fecundity life table parameters for AG were studied on cucumber under conditions of 25+/-1 degrees C, 70+/-5% RH and photoperiod of 16:8 (L:D). Leaf discs of cucumber immersed in the recommended concentrations of the above mentioned insecticides and controls and the new born female was released on the lower surface of leaf discs. Values of parameters such as adult longevity and daily fecundity rate were recorded. Standard error of population growth parameter was calculated using the Jacknife method. The results show that these two insecticides significantly reduce life table parameters compared with control.
在本研究中，我们报告了推荐浓度的吡虫啉和吡蚜酮对棉蚜繁殖的亚致死效应。在25±1℃、相对湿度70±5%、光周期16:8（光照:黑暗）的条件下，在黄瓜上研究了棉蚜的繁殖力生命表参数。将黄瓜叶片圆盘浸入上述杀虫剂的推荐浓度溶液及对照溶液中，然后将新生雌蚜放置在叶片圆盘的下表面。记录成虫寿命和每日繁殖率等参数值。使用刀切法计算种群增长参数的标准误差。结果表明，与对照相比，这两种杀虫剂显著降低了生命表参数。
