桃金娘(桃金娘科植物)叶精油及其主要化合物对墨西哥豆象虫的防治作用

IF 2.4 3区 农林科学 Q1 AGRONOMY Gesunde Pflanzen Pub Date : 2023-12-12 DOI:10.1007/s10343-023-00950-0
Leandro do Prado Ribeiro, Rodrigo Donizeti Faria, Edenilson dos Santos Niculau, Gabriel Luiz Padoan Gonçalves, Thiago Felipe Ansante, Maria Fátima das Graças Fernandes da Silva, José Djair Vendramim
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引用次数: 0

摘要

作为化学杀虫剂的替代品,包括植物杀虫剂在内的生态友好型策略可为储藏产品综合害虫管理(IPM)计划做出贡献。因此,本研究调查了薄荷叶精油(EO)的化学成分和熏蒸杀虫活性,以对抗墨西哥豆象成虫(鞘翅目:菊科:Bruchinae)。此外,还评估了环氧乙烷主要化合物和二元混合物对该害虫的整体熏蒸杀虫活性的贡献。根据气相色谱-质谱分析,苯丙醇(39.60%)和甲基丁香酚(9.10%)以及单萜类化合物 1,8-蒎烯(13.89%)和萜品烯(8.19%)被确定为主要成分。接触 72 小时后,环氧乙烷对亚薮蛙表现出良好的杀虫熏蒸活性,并且与性别有很强的交互作用(雌性和雄性的半数致死浓度分别为 280.17 和 86.63 µL L-1 空气)。当以粗环氧乙烷中的相对浓度进行测试时,苯丙醇、甲基丁香酚和单萜 1,8-蒎烯以及它们的二元混合物会导致暴露的象鼻虫完全死亡,其毒性与用作阳性对照的磷化氢制剂相当。因此,假伞形科植物叶片中的环氧乙烷是一种很有前景的熏蒸杀虫剂,可用于管理亚鳞翅目象鼻虫,其主要化合物 chavibetol、甲基丁香酚和 1,8-cineole 可用于开发高效、廉价的人工混合物,用于贮藏豆类的 IPM。
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Essential Oil from Pimenta pseudocaryophyllus (Myrtaceae) Leaves and Its Major Compounds Against the Mexican Bean Weevil

Eco-friendly strategies, including botanical insecticides, can contribute to stored products Integrated Pest Management (IPM) programs as alternatives to chemical insecticides. Thus, this study investigated the chemical composition and the fumigant insecticidal activity of the essential oil (EO) from Pimenta pseudocaryophyllus (Myrtaceae) leaves against adults of Mexican bean weevil, Zabrotes subfasciatus (Coleoptera: Chrysomelidae: Bruchinae), an important insect pest of stored beans in tropical conditions. In addition, the contribution of EO’s major compounds and binary mixtures on overall fumigant insecticidal activity against this pest was also assessed. Based in the GC-MS analysis, the phenylpropanoids chavibetol (39.60%) and methyl eugenol (9.10%) and the monoterpenoids 1,8-cineole (13.89%) and terpinolene (8.19%) were identified as major components. After 72 h of exposure, the EO showed promising insecticidal fumigant activity against Z. subfasciatus with a strong interaction effect of sex (LC50: 280.17 and 86.63 µL L−1 of air, respectively for females and males). When tested at their relative concentration in the crude EO, the phenylpropanoids chavibetol, methyl eugenol and the monoterpenoid 1,8-cineole as well as their binary mixtures caused the total mortality of exposed weevils, being equitoxic to a phosphine-based formulation used as a positive control. Thus, the EO from P. pseudocaryophyllus leaves is a promising fumigant insecticide to Z. subfasciatus management and its major compounds chavibetol, methyl eugenol and 1,8-cineole may be used to develop efficient and inexpensive artificial blends to IPM of stored beans.

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来源期刊
Gesunde Pflanzen
Gesunde Pflanzen 农林科学-农艺学
CiteScore
3.50
自引率
25.80%
发文量
152
审稿时长
>12 weeks
期刊介绍: Gesunde Pflanzen publiziert praxisbezogene Beiträge zum Pflanzenschutz in Landwirtschaft, Forstwirtschaft, Gartenbau und öffentlichem Grün und seinen Bezügen zum Umwelt- und Verbraucherschutz sowie zu Rechtsfragen. Das Themenspektrum reicht von der Bestimmung der Schadorganismen über Maßnahmen und Verfahren zur Minderung des Befallsrisikos bis hin zur Entwicklung und Anwendung nicht-chemischer und chemischer Bekämpfungsstrategien und -verfahren, aber auch zu Fragen der Auswirkungen des Pflanzenschutzes auf die Umwelt, die Sicherung der Ernährung sowie zu allgemeinen Fragen wie Nutzen und Risiken und zur Entwicklung neuer Technologien. Jedes Heft enthält Originalbeiträge renommierter Wissenschaftler, aktuelle Informationen von Verbänden sowie aus der Industrie, Pressemitteilungen und Personalia. Damit bietet die Zeitschrift vor allem Behörden und Anwendern im Agrarsektor und Verbraucherschutz fundierte Praxisunterstützung auf wissenschaftlichem Niveau.
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