ABSTRACT This study aimed to analyze the chemical composition and to evaluate the essential oil activity of Lantana camara and Lantana montevidensis against R. microplus larvae and engorged females. Analysis of essential oils by GC and GC/MS allowed the identification of 34 constituents. L. camara oil was mainly composed of Bicyclogermacrene, isocaryophyllene, valencene and germacrene-D. L. montevidensis oil was mainly composed of β-caryophyllene, germacrene-D and bicyclogermacrene. Acaricidal activity of the essential oils against R. microplus was evaluated by larval sensitivity and tests using engorged females. L. camara and L. montevidensis essential oils possessed high activity against engorged females with LC50 of 2.9 and 3.3 mg/mL, respectively. Acaricidal activity against R. microplus was moderate with LC50 of 8.8 and 9.2 mg/mL for the L. camara and L. montevidensis essential oils, respectively. LC50 values indicated greater oil activity against engorged females in relation to larvae, with a relevant acaricidal activity against R. microplus.

中文翻译：

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Lantana camara L. 和 Lantana montevidensis Briq 的化学成分和杀螨活性。蜱上的精油 Rhipicephalus microplus

摘要 本研究旨在分析马缨丹和蒙泰维德马缨丹的化学成分，并评估精油对 R. microplus 幼虫和充血雌性的活性。通过 GC 和 GC/MS 分析精油可以鉴定 34 种成分。L. camara oil主要由双环锗烯、异石竹烯、瓦伦烯和锗烯组成-DL montevidensis油主要由β-石竹烯、锗烯-D和双环锗烯组成。精油对 R. microplus 的杀螨活性通过幼虫敏感性和使用充血雌性的测试进行评估。L. camara 和 L. montevidensis 精油对充血的雌性具有高活性，LC50 分别为 2.9 和 3.3 mg/mL。对 R. microplus 的杀螨活性适中，LC50 为 8.8，而 L. LC50 为 9.2 mg/mL。camara 和 L. montevidensis 精油，分别。LC50 值表明相对于幼虫，对饱胀雌性的油活性更高，对 R. microplus 具有相关的杀螨活性。