期刊
PEST MANAGEMENT SCIENCE
卷 70, 期 3, 页码 510-516出版社
JOHN WILEY & SONS LTD
DOI: 10.1002/ps.3635
关键词
noctuid insects; antifeedant; larvicidal; growth inhibition; ovicidal
资金
- Forestry Science and Technology Innovational Specific Project of Guangdong Province [2012KJCX015-01]
- Forestry Special Public Research Project of State Forestry Administration [201004047]
- National Natural Science Foundation of China [81173534]
- Innovative Experimental Projects of College Students of Guangdong [1057212037, 1057213077]
BACKGROUNDEssential 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 (Hubner). RESULTSIn a no-choice assay, PO exhibited strong antifeedant activity against S. litura and S. exigua. PO showed pronounced larvicidal activities, including oral toxicity (LC50 986.88mg L-1 and 545.61mg L-1 respectively) and contact toxicity (LC50 1041.42mg L-1 and 519.48mg 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. CONCLUSIONPO 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. (c) 2013 Society of Chemical Industry
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