At the moment, Hyperaspis polita Weise is a key predator of mealybugs in southern Iran. In this study, the efficiency of this predator on Phenacoccus solenopsis Tinsley, a serious pest, and Planococcus citri Risso as a factitious prey in predator mass rearing, was examined. The functional response experiment was performed for 4th instar larvae, adult male and female of H. polita at five prey densities (2, 4, 8, 12, 16, and 32 adult female stage) on these two preys. The shape of functional response curves well fitted the type II for 4th instar larvae, adult male and female of H. polita on both preys, whenever reared on one prey, while being exposed to the other prey (previous feeding experiences). Comparisons of attack rates and handling time for 4th instar larvae and adult female did not show any difference for various preys as well as previous feeding experiences. For the adult male, when reared on P. solenopsis, the handling time was significantly longer, while it was shorter on P. citri and again the same prey was given to it. The predation was highest for the 4th instar larva followed by adult females and adult male on all treatments. In addition, the maximum predation rate was shown when these predators were reared on P. solenopsis and were exposed to P. citri. The results of this study indicated that H. polita can be an effective biological control agent for mealybugs. It also emphasizes the importance of previous feeding experiences in release program protocols for H. polita.

目前，Hyperaspis polita Weise是伊朗南部粉虱的主要捕食者。在这项研究中，研究了这种捕食者对严重的害虫Phenacoccus solenopsis Tinsley以及捕食者大规模饲养中人为的食肉类柠檬酸橙球菌Planococcus citri Risso的效率。在这两个猎物上，以五个猎物密度（2、4、8、12、16和32个成年雌性阶段）对四龄幼虫，成年的男性和女性的polita进行了功能反应实验。功能反应曲线的形状很好地适合了四龄幼虫的第二型幼虫，成年男性和女性。在两个猎物上，只要饲养在一个猎物上，同时暴露在另一个猎物上（以前的觅食经历）。比较四龄幼虫和成年幼虫的侵袭率和处理时间，发现各种猎物和以前的喂养经历没有任何差异。对于成年男性，在饲养时P.红火，处理时间较长显著，而这是在更短的P.螨又一次的猎物一样被给了它。在所有处理中，四龄幼虫的捕食率最高，其次是成年雌性和成年雄性。此外，被显示的最大的吞噬速率，当这些捕食者饲养上P.红火和暴露于P.螨。这项研究的结果表明，H。polita可以作为粉虱的有效生物防治剂。它还强调了先前的喂养经验对于poli幽门螺杆菌释放计划协议的重要性。