Mosla chinensis Maxim. cv. Jiangxiangru (MCJ) is a traditional Chinese herb, which can be obtained in large quantities by artificial cultivation. In order to understand industrial value of MCJ resources, the essential oil (EO) of MCJ was obtained by steam distillation, analyzed by gas chromatography-mass spectrometry (GC-MS), and evaluated by bioassay and greenhouse trials against Mythimna separate, Myzus persicae, Sitophilus zeamais, Musca domestica and Tetranychus cinnabarinus. The GC-MS results showed that the main components in MCJ EO were thymol (50.60 %), β-thymol (22.32 %) and carvacrol (18.44 %), accounting together for more than 90 % of all compositions. MCJ EO and its three main components showed high fumigant activity against five species insect pests, in the descending order (LC₅₀, μL/L air): T. cinnabarinus adults (3.83), M. persicae adults (4.34), M. separate 3rd instar larvae (4.49), M. domestica adults (5.66), and S. zeamais adults (53.71). Moreover, thymol exhibited higher fumigation toxicity than β-thymol and carvacrol, with the LD₅₀ values of 1.66–59.20 μL/L air to five species insect pests. Greenhouse experiments indicated that MCJ EO 10 % emulsion exhibited obvious corrected control efficacy of about 87.92 % and 77.34 % against M. persicae and T. cinnabarinus on kidney bean (Phaseolus vulgaris) plants after 7 days treatment at 300 ghm⁻², respectively. As a traditional Chinese medicinal herb with a large-scale planting area, MCJ provides low-cost, abundant raw materials for production of MCJ EO. And MCJ EO, a safe and broad-spectrum insecticidal active ingredient, has the potential to be developed as novel botanical pesticides for the management of agricultural, sanitary and stored pests.

摩斯拉（Mosla chinensis） Maxim。简历。降香乳（MCJ）是一种传统中草药，可以通过人工栽培大量获取。为了了解MCJ资源的工业价值，通过蒸汽蒸馏获得MCJ的精油（EO），通过气相色谱-质谱法（GC-MS）进行分析，并通过生物测定和温室试验针对Mythimnaepa，Myzus persicae进行评估，玉米丝杆菌，家蝇和四叶朱砂。GC-MS结果表明MCJ EO中的主要成分为百里香酚（50.60％），β-百里酚（22.32％）和香芹酚（18.44％），占所有组合物的90％以上。MCJ EO及其三个主要成分对五种害虫表现出较高的熏蒸活性，按降序排列（LC ₅₀，μL/ L空气）：朱砂丁香虫成虫（3.83），百日草成虫（4.34），M。三龄幼虫（4.49），家蝇（M. domestica）成虫（5.66）和玉米（S. zeamais）成虫（53.71）。此外，百草枯比β-百里酚和香芹酚具有更高的熏蒸毒性，LD ₅₀空气对五种昆虫的有害生物值为1.66–59.20μL/ L。温室实验表明，MCJ EO 10％乳剂在300 g hm ^-2处理7天后，分别对芸豆（菜豆）和百日草（T. cinnabarinus）表现出约87.92％和77.34％的明显校正防治效果。作为一种具有较大种植面积的传统中草药，MCJ为生产MCJ EO提供了低成本，丰富的原料。MCJ EO是一种安全且广谱的杀虫活性成分，有潜力被开发为新型的植物农药，用于管理农业，卫生和储存的害虫。