硅藻土对嗜卷书虱不同虫态的杀螨活性
Acaricidal Efficacy of Diatomaceous Earths on Different Life Stages of L. and (Schrank).
作者信息
Boukouvala Maria C, Filintas Constantin S, Kavallieratos Nickolas G
机构信息
Laboratory of Agricultural Zoology and Entomology, Faculty of Crop Science, Agricultural University of Athens, 75 Iera Odos str., 11855 Athens, Greece.
出版信息
Insects. 2025 Jul 4;16(7):693. doi: 10.3390/insects16070693.
L. and (Schrank) (Sarcoptiformes: Acaridae) are cosmopolitan mite species in food storage and processing environments, infesting a wide variety of commodities. In the current study, the diatomaceous earths (DEs) InsectoSec and Fossil Shield were evaluated for wheat protection against adults, larvae, and nymphs of and . Both DEs were examined at 200 and 500 ppm at 1, 2, and 5 days post-exposure. The efficacy of both formulations against and life stages depended on dose and exposure. Mortality of reached 100% in larvae, 99.3% in nymphs, and 95.6% in adults by day 5 at 500 ppm of InsectoSec. Similarly, Fossil Shield achieved almost complete larval mortality (99.3%) of at 500 ppm. For , 100% mortality was observed for larvae at both doses of InsectoSec and for adults or nymphs at 500 ppm by the fifth day. Fossil Shield caused a similar mortality to larvae, reaching 97.0% and 100%, at 200 and 500 ppm, respectively, after 5 days. Our findings indicate that InsectoSec and Fossil Shield can be used as sustainable management tools against and .
粗脚粉螨和腐食酪螨（粉螨目：粉螨科）是在食品储存和加工环境中广泛分布的螨类物种，会侵害多种商品。在本研究中，对硅藻土InsectoSec和Fossil Shield进行了评估，以确定其对粗脚粉螨和腐食酪螨成虫、幼虫和若虫的小麦防护效果。在暴露后1天、2天和5天，对两种硅藻土均以200 ppm和500 ppm的浓度进行了检测。两种制剂对粗脚粉螨和腐食酪螨各发育阶段的防治效果取决于剂量和暴露时间。在500 ppm的InsectoSec作用下，到第5天，粗脚粉螨幼虫死亡率达到100%，若虫死亡率为99.3%，成虫死亡率为95.6%。同样，在500 ppm的Fossil Shield作用下，腐食酪螨幼虫死亡率几乎达到100%（99.3%）。对于腐食酪螨，在两种剂量的InsectoSec作用下，幼虫死亡率均为100%，在500 ppm时，到第5天成虫和若虫死亡率也达到100%。Fossil Shield对腐食酪螨幼虫的致死率与之相似，5天后在200 ppm和500 ppm浓度下分别达到97.0%和100%。我们的研究结果表明，InsectoSec和Fossil Shield可作为防治粗脚粉螨和腐食酪螨的可持续管理工具。
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