Thrips of the subtropical genus Scirtothrips are emerging as important pests in several crops. Scirtothrips dorsalis has been increasingly invading new areas outside of its native region of South and East Asia causing economic damage to several crops. Scirtothrips inermis is another polyphagous species with worldwide distribution. Both species are polyphagous, and in recent years have emerged as key pests in strawberry. In this study, we first evaluated the predation and oviposition rate of commercially available phytoseiid predatory mites Amblyseius swirskii, Amblydromalus limonicus, Transeius montdorensis, and Neoseiulus cucumeris on larval stages of both Scirtothrips species, and oviposition rates of predatory mites on the supplementary food source Artemia franciscana cysts were also assessed. Predatory mites equally accepted both thrips species as prey and showed stable oviposition rates on these diets. Amblyseius swirskii and A. limonicus were the most voracious, also exhibiting the highest oviposition rate of the predators tested. We further evaluated the biological control potential of predatory mites and anthocorid predators Orius laevigatus and Orius limbatus in a greenhouse experiment. Predators were released preventively and supported with Artemia cysts before the introduction of S. inermis. Both Orius predators achieved good control of the pest, with O. limbatus developing higher numbers than O. laevigatus. Regarding phytoseiids, A. swirskii and A. limonicus both controlled the pest and built higher populations than T. montdorensis and N. cucumeris. Our results show that a preventive strategy based on phytoseiid or anthocorid predators in strawberry can be effective in suppressing S. inermis.

亚热带硬蓟马属蓟马正在成为多种作物的重要害虫。橘蓟马越来越多地入侵南亚和东亚本土地区以外的新地区，对多种作物造成经济损失。Scirtothrips inermis是另一种分布于世界各地的杂食性物种。这两个物种都是杂食性的，近年来已成为草莓的主要害虫。在本研究中，我们首先评估了市售植绥捕食螨Amblyseius swirskii、Amblydromalus limonicus、Transeius montdorensis和Neoseiulus cucumeris在两种硬蓟马物种幼虫阶段的捕食和产卵率，以及捕食性螨对补充食物源卤虫的产卵率还评估了franciscana囊肿。捕食性螨虫同样接受两种蓟马作为猎物，并在这些饮食中表现出稳定的产卵率。斯氏钝绥螨和柠檬钝绥螨是最贪婪的，在测试的捕食者中也表现出最高的产卵率。我们在温室实验中进一步评估了捕食性螨虫和花环科捕食者Orius laevigatus和Oriuslimbatus的生物防治潜力。在引入无刺卤虫之前，捕食者被预防性地释放并用卤虫包囊支持。两种Orius捕食者都对害虫进行了良好的控制，其中O.limbatus 的数量高于O.laevigatus。就植物绥虫而言，A. swirskii和A. limonicus都控制了害虫，并且比T. montdorensis和N. cucumeris建立了更高的种群数量。我们的研究结果表明，基于草莓植绥虫或花甲虫捕食者的预防策略可有效抑制无刺链霉菌。