Hung Nguyen Huy, Satyal Prabodh, Hieu Ho Viet, Chuong Nguyen Thi Hong, Dai Do Ngoc, Huong Le Thi, Tai Thieu Anh, Setzer William N
Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University,03 Quang Trung, Da Nang 50000, Vietnam.
Aromatic Plant Research Center, 230 N 1200 E, Suite 102, Lehi, UT 84043, USA.
Insects. 2019 Feb 3;10(2):47. doi: 10.3390/insects10020047.
Mosquito-borne infections are a constant problem in Vietnam, and mosquito vector control is a primary approach to control these infections. Essential oils represent environmentally friendly alternatives to synthetic pesticides for mosquito control. The essential oils of two weedy species in Vietnam, and , have been obtained by hydrodistillation and analyzed by gas chromatography⁻mass spectrometry. The essential oils have been screened for mosquito larvicidal activity against , , and . The essential oil from the aerial parts of was rich in α-pinene (14.5%), limonene (21.4%), and caryophyllene oxide (15.1%), while essential oil was dominated by myrcene (47.8%) and α-pinene (30.2%). Both essential oils showed good larvicidal activity against (24-h LC 10.5 and 5.8 μg/mL, respectively) and (24-h LC 10.6 and 12.5 μg/mL, respectively). The essential oil of also showed good activity against larvae (24-h LC = 40.7 μg/mL). Thus, essential oils may serve as low-cost vector control agents for mosquito-borne infections.
蚊媒感染在越南一直是个问题，而控制蚊虫媒介是控制这些感染的主要方法。香精油是用于蚊虫控制的合成杀虫剂的环保替代品。越南的两种杂草物种[此处原文未给出具体物种名称]的香精油已通过水蒸馏法获得，并通过气相色谱-质谱联用仪进行了分析。已对这些香精油针对[此处原文未给出具体蚊虫名称]、[此处原文未给出具体蚊虫名称]和[此处原文未给出具体蚊虫名称]的杀蚊幼虫活性进行了筛选。[此处原文未给出具体物种名称]地上部分的香精油富含α-蒎烯（14.5%）、柠檬烯（21.4%）和氧化石竹烯（15.1%），而[此处原文未给出具体物种名称]香精油则以月桂烯（47.8%）和α-蒎烯（30.2%）为主。两种香精油对[此处原文未给出具体蚊虫名称]（24小时半数致死浓度分别为10.5和5.8微克/毫升）和[此处原文未给出具体蚊虫名称]（24小时半数致死浓度分别为10.6和12.5微克/毫升）均表现出良好的杀幼虫活性。[此处原文未给出具体物种名称]的香精油对[此处原文未给出具体蚊虫名称]幼虫也表现出良好活性（24小时半数致死浓度 = 40.7微克/毫升）。因此，[此处原文未给出具体物种名称]香精油可作为低成本的蚊媒感染媒介控制剂。
