Soltaniyan Afsaneh, Kheradmand Katayoon, Fathipour Yaghoub, Shirdel Davoud
Department of Entomology and Plant Pathology, Aburaihan Campus, University of Tehran, Tehran, Iran.
Department of Entomology, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran.
J Econ Entomol. 2018 Sep 26;111(5):2046-2052. doi: 10.1093/jee/toy172.
Alternative foods such as pollen may help predators to maintain their populations even when their prey is scarce or absent. In order to develop an appropriate spider mite management strategy using Neoseiulus californicus McGregor and optimize laboratory rearing, its biological parameters on four types of pollen (cedar, pistachio, pear, and apricot) were determined and compared on Tetranychus urticae Koch. Our results indicated that the developmental times of females and males varied from 6.06 to 7.32, and 6.00 to 7.15 d, respectively. The highest fecundity was obtained on pistachio pollen, followed by apricot pollen and T. urticae. Feeding on cedar pollen caused the lowest fecundity. In contrast to T. urticae and pistachio pollen, which resulted in the highest intrinsic and finite rates of increase, feeding on cedar pollen produced the lowest value. Pistachio and apricot pollen appear to have the highest nutritional value. From an ecological perspective, in the presence of pistachio pollen, a more rapid population increase of N. californicus could be expected, when the prey is scarce or absent in greenhouses or fields. This may provide valuable information for the design of a comprehensive program for conservation and/or mass production of N. californicus to control T. urticae and other pests.
诸如花粉之类的替代食物，即便在捕食者的猎物稀缺或不存在时，也可能有助于它们维持种群数量。为了制定一种使用加州新小绥螨（Neoseiulus californicus McGregor）的合适的叶螨管理策略并优化实验室饲养，我们测定并比较了加州新小绥螨在四种花粉（雪松、开心果、梨和杏）上对二斑叶螨（Tetranychus urticae Koch）的生物学参数。我们的结果表明，雌螨和雄螨的发育时间分别在6.06至7.32天以及6.00至7.15天之间变化。在开心果花粉上获得的繁殖力最高，其次是杏花粉和二斑叶螨。以雪松花粉为食导致繁殖力最低。与二斑叶螨和开心果花粉相比，后者导致了最高的内禀增长率和有限增长率，而以雪松花粉为食产生的数值最低。开心果和杏花粉似乎具有最高的营养价值。从生态学角度来看，在温室或田间猎物稀缺或不存在时，若有开心果花粉，预计加州新小绥螨的种群数量会增长得更快。这可能为设计一个保护和/或大规模生产加州新小绥螨以控制二斑叶螨及其他害虫的综合计划提供有价值的信息。
