Department of Entomology, Faculty of Agriculture, Tarbiat Modares University, P.O. Box 14115-336, Tehran, Iran.
School of Biological Sciences, The University of Queensland, Saint Lucia, Queensland 4072, Australia.
J Insect Sci. 2022 Jul 1;22(4). doi: 10.1093/jisesa/ieac043.
The generalist predatory mite, Neoseiulus cucumeris (Oudemans) is known as one of the most effective natural enemies on many pests. This economically important biocontrol agent was reared for 20 generations on date palm and castor bean pollen as well as a mixture of pollen types, including date palm, castor bean, and almond. The performance of this predator was evaluated by comparing its life table parameters after different generations (G1-G20) fed on each diet in a laboratory at 25 ± 1°C, 60 ± 5% RH, and a photoperiod of 16:8 (L: D) h. The development time of the predator reared on all tested diets had no significant difference in G20. The intrinsic rate of increase (r) of N. cucumeris by feeding on the mixed pollen (0.197 day-1) was significantly higher than that on castor bean, or date palm pollen (0.146 or 0.152 day-1 in G1, respectively). Our results indicated that the predator's performance was not affected by long-term feeding on the pollen diets, as well as there was no considerable difference between pollen alone and pollen mixture diets. Furthermore, mites reared on pollen diets had higher quality than those reared on natural prey, Tetranychus urticae Koch.
通用捕食螨，智利小植绥螨（Oudemans），被认为是许多害虫最有效的天敌之一。这种具有重要经济意义的生物防治剂已经在棕榈树和蓖麻花粉以及花粉混合物（包括棕榈树、蓖麻和杏仁）上饲养了 20 代。在 25±1°C、60±5%RH 和 16:8（L:D）h 的光照周期下，在实验室中比较了该捕食者在不同世代（G1-G20）喂食每种饮食后的生命表参数，评估了这种捕食者的性能。在 G20 时，所有测试饮食中饲养的捕食者的发育时间没有显著差异。以混合花粉（0.197 天-1）为食的 N. cucumeris 的内禀增长率（r）明显高于以蓖麻或棕榈花粉为食（G1 时分别为 0.146 或 0.152 天-1）。我们的结果表明，捕食者的性能不受长期花粉饮食的影响，单独花粉和花粉混合物饮食之间也没有明显差异。此外，以花粉为食的螨虫比以天然猎物（Tetranychus urticae Koch）为食的螨虫质量更高。
