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Issue:ISSN 2095-1353
           CN 11-6020/Q
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Your Position :Home->Past Journals Catalog->2016年53 No.4

Chemical composition of Lantana camara L. leaf essential oil and itsbiological activity to three insect pests
Author of the article:HAN Meng1** LUO Lan1 YUAN Zhong-Lin1*** Ahn Young-Joon2
Author's Workplace:1. College of Agronomy and Plant Protection, Qingdao Agricultural University, Qingdao 266109, China; 2. College of Agriculture and Life Science, Seoul National University, Seoul 151742, Korea
Key Words:Lantana camara, essential oil, Sitophilus oryzae, Aedes aegypti , Reticulitermes flavipes, biological activity
Abstract:

 [Objectives]  To investigate the chemical composition of Lantana camara L.leaf essential oil, its biological activity to 3 insect pests, and its potential as a means of controlling insect pests. [Methods]  L. camara leaf essential oil was extracted using the steam distillation method which gave a yield of 0.21%. The essential oil was examined using an Agilent GC-MS (gas chromatograph-mass spectrometer-computer) system. 26 major constituents were identified, but the major constituents were α-curcumene (32.76%), β-caryophyllene (16.36%), caryophyllene oxide (12.22%) and spathulenol (10.48%). After analysis of the chemical composition of this essential oil, its biological activity to 3 insect pests was determined. [Results]  The contact toxicity and repellent effect of L.camara leaf essential oil were tested on Sitophilus oryzae adults, fourth instar larvae of Aedes aegypti, and Reticulitermes flavipes worker. These bioassays showed that the essential oil had significant toxicity to S. oryzae adults and fourth instar larvae of A. aegypti, with LC50 values of 0.92 mg/cm2 and 32.33 μg/mL, respectively. The higher the concentration of the essential oil, the stronger its repellent effect and toxicity to the termite Reticulitermes flavipes. High concentrations of essential oil displayed significant contact toxic activity to termites, but mortality from lower concentrations was not significant. [Conclusion]  L. camara leaf essential oil has potential as a means of controlling the 3 insect pests tested.

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