Chemical Composition and Insecticidal Activity of Crithmum Maritimum L. Essential Oil against Stored‐Product Beetle Tribolium Castaneum,Chemistry & Biodiversity

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Chemical Composition and Insecticidal Activity of Crithmum Maritimum L. Essential Oil against Stored‐Product Beetle Tribolium Castaneum
Chemistry & Biodiversity ( IF 2.3 ) Pub Date : 2020-03-01 , DOI: 10.1002/cbdv.201900552
Mayssa Ben Mustapha ₁ , Afifa Zardi‐Bergaoui ₁ , Ikbel Chaieb ₂ , Guido Flamini _{3,

4} , Roberta Ascrizzi ₃ , Hichem Ben Jannet ₁

Affiliation

Several plant essential oils have been used against diverse insect pests since, unlike conventional pesticides, they pose almost no risk to humans and the environment. For this reason, the essential oil (EO) isolated from the fresh leaves of Crithmum maritimum L. and its fractions (F1–F5) obtained by chromatographic simplification were investigated for their chemical profile, as well as for their toxicity and repellency effects against Tribolium castaneum (Herbst) adults. The analysis by GC/MS allowed the identification of 92.8–99.1 % of the compositions of the total oil (EO) and of its fractions (F1–F5). The EO and its fractions F3–F5 were characterized by the presence of a high amount of phenylpropanoids (94.4, 94.8, 93.6, and 88.7 %, respectively): in all the samples, dill apiole was the most abundant component (EO: 94.1 %, F3: 94.6 %, F4: 93.4 %, and F5: 83.3 %). In addition, the repellency assay results showed that the volatile fraction F5 and the complete EO exhibited a higher repellency towards T. castaneum (97 % and 93 %, respectively) after 2 h of exposure at the dose of 0.04 μL/cm2. The median lethal dose of the topical application of the EO was 9 %. Furthermore, the fraction F1 possessed interesting contact toxicity against T. castaneum (80 % of mortality) at the concentration of 10 %. These results suggested that the essential oil of C. maritimum leaves might be used as an alternative to synthetic insecticides in order to prevent insects from damaging the stored products.

中文翻译：

Crithmum Maritimum L. 精油对贮藏甲虫 Tribolium Castaneum 的化学成分和杀虫活性

几种植物精油已被用于对抗多种害虫，因为与传统杀虫剂不同，它们对人类和环境几乎没有风险。出于这个原因，从 Crithmum maritimum L. 的新鲜叶子中分离出的精油 (EO) 及其通过色谱简化获得的馏分 (F1-F5) 进行了化学特征研究，以及它们对 Tribolium 的毒性和排斥作用栗 (Herbst) 成虫。GC/MS 分析允许鉴定 92.8-99.1% 的总油 (EO) 及其馏分 (F1-F5) 的组成。EO 及其馏分 F3-F5 的特征在于存在大量苯丙烷（分别为 94.4、94.8、93.6 和 88.7%）：在所有样品中，莳萝柱是最丰富的组分（EO：94.1%） , F3: 94.6 %, F4: 93。4%，和 F5：83.3%)。此外，驱避性测定结果表明，在以 0.04 μL/cm2 的剂量暴露 2 小时后，挥发性组分 F5 和完全 EO 对 T. castaneum 表现出更高的驱避性（分别为 97% 和 93%）。EO 局部应用的中位致死剂量为 9%。此外，F1 级分在 10% 的浓度下对 T. castaneum（死亡率的 80%）具有有趣的接触毒性。这些结果表明，C. maritimum 叶子的精油可以用作合成杀虫剂的替代品，以防止昆虫破坏储存的产品。分别）以 0.04 μL/cm2 的剂量暴露 2 小时后。EO 局部应用的中位致死剂量为 9%。此外，F1 级分在 10% 的浓度下对 T. castaneum（死亡率的 80%）具有有趣的接触毒性。这些结果表明，C. maritimum 叶精油可用作合成杀虫剂的替代品，以防止昆虫破坏储存的产品。分别）以 0.04 μL/cm2 的剂量暴露 2 小时后。EO 局部应用的中位致死剂量为 9%。此外，F1 级分在 10% 的浓度下对 T. castaneum（死亡率的 80%）具有有趣的接触毒性。这些结果表明，C. maritimum 叶精油可用作合成杀虫剂的替代品，以防止昆虫破坏储存的产品。

更新日期：2020-03-01

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