苦皮藤素对两种储粮害虫的触杀和驱避活性。
Contact Toxicity and Repellent Effects of Essential Oils from Toddalia asiatica Against Two Stored-Product Insects.
机构信息
Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical Science, Beijing Normal University, Haidian District, Beijing, 100875, China.
Department of Biomedical Science, Beijing City University, No. 269 North 4th Ring Middle Road, Haidian District, Beijing, 100191, China.
出版信息
Chem Biodivers. 2024 Nov;21(11):e202400818. doi: 10.1002/cbdv.202400818. Epub 2024 Oct 3.
Insect infestations continually endanger stored goods, underscoring the significance of discovering eco-friendly insecticides for pest management. Essential oils (EOs) from different parts of Toddalia asiatica (leaf, fruit and branch) were extracted by hydrodistillation and analyzed by GC-MS. Carvene, p-cymene and muurolene are the principal compounds of T. asiatica leaf (TAL), T. asiatica fruit (TAF) and T. asiatica branch (TAB) EO respectively. Our work aimed to assess the contact toxicity and repellent effects of EOs on two storage pests, Tribolium castaneum and Lasioderma serricorne. All tested EOs exhibited obvious contact toxicity, especially, TAL EO against T. castaneum (33.48 μg/adult) and TAF EO against L. serricorne (16.42 μg/adult). Repellency tests revealed that TAL and TAF EOs, at a concentration of 78.63 nL/cm, achieved nearing 100 % efficiency against T. castaneum. These results suggest that EOs of T. asiatica could be used as effective botanical insecticides for managing stored-product insects.
昆虫不断威胁着储存的货物，这凸显了寻找环保型杀虫剂来进行害虫管理的重要性。采用水蒸馏法从苦皮藤（叶、果和枝）的不同部位提取精油，并通过 GC-MS 进行分析。蒈烯、对伞花烃和愈创木烯分别是苦皮藤叶精油（TAL）、苦皮藤果精油（TAF）和苦皮藤枝精油（TAB）的主要成分。我们的工作旨在评估精油对两种仓储害虫——赤拟谷盗和烟草甲——的触杀毒性和驱避作用。所有测试的精油都表现出明显的触杀毒性，特别是 TAL 精油对赤拟谷盗（33.48μg/成虫）和 TAF 精油对烟草甲（16.42μg/成虫）的毒性较强。驱避性试验表明，TAL 和 TAF 精油在 78.63nL/cm 的浓度下，对赤拟谷盗的驱避率接近 100%。这些结果表明，苦皮藤精油可用作防治仓储害虫的有效植物性杀虫剂。
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