Ebadollahi Asgar, Sendi Jalal Jalali, Maroufpoor Mostafa, Rahimi-Nasrabadi Mehdi
Moghan College of Agriculture and Natural Resources, University of Mohaghegh Ardabili.
J Oleo Sci. 2017 Mar 1;66(3):307-314. doi: 10.5650/jos.ess15258. Epub 2017 Feb 10.
There is a rapid growth in the screening of plant materials for finding new bio-pesticides. In the present study, the essential oils of E. oleosa and E. torquata leaves were extracted using a Clevenger apparatus and their chemical profiles were investigated by Gas Chromatography-Mass Spectrometry (GC-MS). Among identified compounds, the terpenes had highest amount for both essential oils; 93.59% for E. oleosa and 97.69% for E. torquata. 1,8-Cineole (31.96%), α-pinene (15.25%) and trans-anethole (7.32%) in the essential oil of E. oleosa and 1,8-cineole (28.57%), α-pinene (15.74%) and globulol (13.11%) in the E. torquata essential oil were identified as the main components. The acaricidal activity of the essential oils of E. oleosa and E. torquata were examined using fumigation methods against the adult females of Tetranychus urticae Koch. The essential oils have potential acaricidal effects on T. urticae. The essential oil of E. oleosa with LC value of 2.42 µL/L air was stronger than E. torquata. A correlation between log concentration and mite mortality has been observed. Based on the results of present study, it can be stated that the essential oils of E. oleosa and E. torquata have a worthy potential in the management of T. urticae.
为寻找新型生物农药而对植物材料进行的筛选正在迅速增长。在本研究中，使用克利夫兰蒸馏器提取了油橄榄叶和扭旋叶桉叶的精油，并通过气相色谱-质谱联用仪（GC-MS）对其化学组成进行了研究。在所鉴定出的化合物中，萜类化合物在两种精油中的含量最高；油橄榄叶精油中萜类化合物含量为93.59%，扭旋叶桉叶精油中为97.69%。油橄榄叶精油中的1,8-桉叶素（31.96%）、α-蒎烯（15.25%）和反式茴香脑（7.32%）以及扭旋叶桉叶精油中的1,8-桉叶素（28.57%）,α-蒎烯（15..74%）和球松素（13.11%）被确定为主要成分。采用熏蒸法检测了油橄榄叶和扭旋叶桉叶精油对朱砂叶螨雌成虫的杀螨活性。这些精油对朱砂叶螨具有潜在的杀螨作用。油橄榄叶精油在空气浓度为2.42µL/L时的杀螨活性比扭旋叶桉叶精油更强。观察到对数浓度与螨虫死亡率之间存在相关性。基于本研究结果，可以说油橄榄叶和扭旋叶桉叶的精油在朱砂叶螨的防治方面具有可观的潜力。
