Biotechnology Research and Application Center, Çukurova University, Adana, Turkey.
Department of Plant Protection, Faculty of Agriculture, İnönü University, Malatya, Turkey.
J Econ Entomol. 2019 May 22;112(3):1105-1111. doi: 10.1093/jee/toz041.
Lysiphlebus confusus Tremblay and Eady, L. fabarum (Marshall), and L. testaceipes (Cresson) (Hymenoptera: Braconidae: Aphidiinae) are important biological control agents for aphids. To select the appropriate biological control agent for a target pest, an understanding of the demographic parameters is essential. Therefore, a study was conducted to determine the effect of five temperatures, 12, 17, 22, 27, and 32°C, at 60% RH and 5.0 Lux photoperiod of 16:8 (L:D) h, on the parasitism rate, development, and fecundity of these three parasitoids of Aphis gossypii Glover (Hemiptera: Aphididae). Only L. fabarum parasitized at 12°C and the rate was low. None of the parasitoids was able to develop at 32°C. Lysiphlebus testaceipes had the shortest developmental period at the other temperatures. Lysiphlebus confusus and L. fabarum had similar developmental times at 22 and 27°C, with L. confusus completing its development faster at 17°C. The mortality rate of the three parasitoids varied between 3 and 20% at 17, 22, and 27°C, except for L. testaceipes which had about 53% mortality at 27°C. Lysiphlebus testaceipes had the highest net reproductive rate at all temperatures for the 2.5 and 97.5% bootstrap CIs. Lysiphlebus fabarum had the highest intrinsic rate of increase at 22°C and L. testaceipes had the highest at the other temperatures. The best temperatures for fecundity were 17 and 22°C for L. testaceipes and 22°C for the other species. Lysiphlebus testaceipes appeared to be the most suited biological control agent for A. gossypii in southern Turkey, but its intolerance to high temperature could prove problematic for its establishment and persistence in this region.
混淆瘦腹泥蜂 Tremblay 和 Eady、李氏蚜小蜂（Marshall）和李氏食蚜蝇（Cresson）（膜翅目：蚜小蜂科：蚜小蜂亚科）是重要的蚜虫生物防治剂。为了选择针对靶标害虫的适当生物防治剂，了解其种群参数至关重要。因此，进行了一项研究，以确定在 60%相对湿度和 5.0 Lux 光周期为 16:8（L:D）h 的五个温度（12、17、22、27 和 32°C）对三种棉蚜寄生蜂（棉蚜科：半翅目）寄生率、发育和繁殖的影响。只有李氏蚜小蜂在 12°C 时寄生，且寄生率较低。三种寄生蜂在 32°C 时均无法发育。在其他温度下，李氏食蚜蝇的发育时间最短。在 22 和 27°C 时，瘦腹泥蜂和李氏蚜小蜂的发育时间相似，在 17°C 时瘦腹泥蜂的发育速度更快。三种寄生蜂在 17、22 和 27°C 时的死亡率在 3%至 20%之间，而李氏食蚜蝇在 27°C 时的死亡率约为 53%。在所有温度下，李氏食蚜蝇的净生殖率最高，97.5% bootstrap CI 为 2.5。在 22°C 时，李氏蚜小蜂的内禀增长率最高，而在其他温度下，李氏食蚜蝇的内禀增长率最高。李氏食蚜蝇最适合生育的温度为 17 和 22°C，而其他两种物种最适合生育的温度为 22°C。在土耳其南部，李氏食蚜蝇似乎是最适合用于防治棉蚜的生物防治剂，但它对高温的不耐受可能会对其在该地区的建立和持续存在造成问题。
