Insecticidal activity of pogostone against Spodoptera litura and Spodoptera exigua (Lepidoptera: Noctuidae)

Authors

  • Si-Han Huang,

    1. School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Higher Education Mega Centre, Guangzhou, China
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    • These two authors contributed equally to this work.
  • Ji-Dong Xian,

    1. College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
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    • These two authors contributed equally to this work.
  • Song-Zhi Kong,

    1. School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Higher Education Mega Centre, Guangzhou, China
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  • Yu-Cui Li,

    1. School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Higher Education Mega Centre, Guangzhou, China
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  • Jian-Hui Xie,

    1. School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Higher Education Mega Centre, Guangzhou, China
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  • Ji Lin,

    1. School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Higher Education Mega Centre, Guangzhou, China
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  • Jian-Nan Chen,

    1. School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Higher Education Mega Centre, Guangzhou, China
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  • Hong-Feng Wang,

    Corresponding author
    1. Biotechnology Division, Guangdong Academy of Forestry, Guangzhou, China
    • Correspondence to: Zi-Ren Su and Hong-Feng Wang, School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Higher Education Mega Centre, Guangzhou, China; Biotechnology Division, Guangdong Academy of Forestry, Guangzhou, People's Republic of China. E-mail: suziren@gzhtcm.edu.cn; whfgd@263.net

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  • Zi-Ren Su

    Corresponding author
    1. School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Higher Education Mega Centre, Guangzhou, China
    • Correspondence to: Zi-Ren Su and Hong-Feng Wang, School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Higher Education Mega Centre, Guangzhou, China; Biotechnology Division, Guangdong Academy of Forestry, Guangzhou, People's Republic of China. E-mail: suziren@gzhtcm.edu.cn; whfgd@263.net

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Abstract

BACKGROUND

Essential oil of Pogostemon cablin (Blanco) Benth. has been reported to exhibit strong insecticidal activities, but few studies have focused on the insecticidal activity of its main individual constituent, pogostone (PO). The goal of this research was to investigate the insecticidal activity of PO against two harmful noctuid insects, Spodoptera litura (Fabricius) and Spodoptera exigua (Hübner).

RESULTS

In a no-choice assay, PO exhibited strong antifeedant activity against S. litura and S. exigua. PO showed pronounced larvicidal activities, including oral toxicity (LC50 986.88 mg L−1 and 545.61 mg L−1 respectively) and contact toxicity (LC50 1041.42 mg L−1 and 519.48 mg L−1 respectively) against these two noctuid insects. Additionally, PO treatment significantly increased the larval and pupal developmental period. Furthermore, PO showed moderate ovicidal activities and influenced the emergence and deformity of the moth. However, PO failed to exert a potent effect on adult development. These tested parameters proved to be dose dependent for both insect species.

CONCLUSION

PO possesses strong insecticidal activities, especially antifeedant, larvicidal, growth inhibitory and pupicidal activities, against S. litura and S. exigua. PO may partly account for the insecticidal activity of patchouli oil and may be a promising candidate for the control of agricultural insects. © 2013 Society of Chemical Industry

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