ISSN

0974-4150 (Online)
0974-4169 (Print)


Author(s): Monika Gupta, Aditi Gupta, Sudhakar Gupta

Email(s): gaditi74@yahoo.com

DOI: Not Available

Address: Monika Gupta1, Aditi Gupta1 and Sudhakar Gupta2
1Department of Chemistry, Lovely Professional University, Phagwara (144402), Punjab, India
2Department of Zoology, Lovely Professional University, Phagwara (144402), Punjab, India
*Corresponding Author

Published In:   Volume - 6,      Issue - 3,     Year - 2013


ABSTRACT:
The insecticidal activity of essential oils obtained from methanol extracts of Piper nigrum L. (Piperaceae) and Psoralea corylifolia (Fabaceae) against Epilachna insect and Mustard aphids (Lipaphis erysimi) was investigated in a series of laboratory experiments. Insecticidal activity was determined at 25 ± 4°C and 70 ± 5% R.H., in dark conditions. The methanol extracts of the dried seeds of the plants were subjected to hydrodistillation using a Clevenger type apparatus. The major components in these essential oils are identified using GC-MS spectroscopy and their insecticidal activity was tested. The predominant components in the oil of Piper nigrum are Methyl benzene, delta- elemene, alpha- copane, caryophyllene, alpha caryophyllene, beta bisabolene and delta cadinene where as the predominant components in the oil of Psoralea corylifolia are toluene, alpha-pinene, L-beta-pinene, beta-pinene, 3-carene, limonene, Gamma terpinene, terpinolene, alpha santolina alcohol, 4-terpineol, Cyclohexene, 1-methyl-4-(1-methyl ethenyl), caryophyllene, alpha caryophyllene, thumbergene. The mortality rate of the agricultural pests was checked against 1%, 5% and 10% conc. of essential oil. The essential oil from Psoralea corylifolia and Piper nigrum shows strong toxic effect against Epilachna insect where as that from Psoralea corylifolia and Piper nigrum were significantly less effective against Mustard aphids (Lipaphis erysimi). Finding insecticidal activity is of great importance as using plant extracts as insecticides, are biodegrable and do not leave toxic residues.


Cite this article:
Monika Gupta, Aditi Gupta, Sudhakar Gupta. Insecticidal Activity of Essential Oils Obtained from Piper nigrum and Psoralea corylifolia Seeds against Agricultural Pests. Asian J. Research Chem. 6(4): April 2013; Page 360-363.

Cite(Electronic):
Monika Gupta, Aditi Gupta, Sudhakar Gupta. Insecticidal Activity of Essential Oils Obtained from Piper nigrum and Psoralea corylifolia Seeds against Agricultural Pests. Asian J. Research Chem. 6(4): April 2013; Page 360-363.   Available on: https://ajrconline.org/AbstractView.aspx?PID=2013-6-3-21


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