April 2014 Vol. 1(1), pp. 001-008
Copyright © 2014 Transcontinental Publishers

 

Full Length Research Paper

The termite controlling capabilities of extracts of Thevetia peruviana (Pers.) K. Schum in Ghana

Tagbor Trinity Ama1*, Twumasi Sylvester Kwadwo2, Bosu P. Paul3 and Epraim James Hawkins2

1CSIR/BRRI UP Box 40 Kumasi, Ghana.
2Catholic University College of Ghana, P.O. Box 363 P.O. Box 363 FiapreSunyani B/A.
3CSIR/FORIG P.O Box 63 KNUST Kumasi, Ghana.

*Corresponding Author E-mail: amitagbor@yahoo.co.uk, Phone: +23324267731 fax: +233322060080

Accepted 17 April, 2014

Abstract

There is an increasing interest in using natural products in pest control because of their low mammalian toxicity and environmental safety. Some local plant materials have been identified as potential alternative. The objective of this work was to determine the antitermitic efficacy of Thevetiaperuviana K Schum. The termite controlling properties of petroleum ether, ethanol and water extracts obtained from the roots of T. peruviana (pers) K. Schum roots were studied. To do this stakes were impregnated with extacts obtained from T. peruviana and burried in the field for a period of 5 months. The repellency/attractancy tendencies of ethanol extract of T. peruviana  in different solvent media were also determined as well as Brine shrimp lethality tests to determine the efficacy of four fractions obtained from the ethanol extract. Phytochemical investigation was carried out on all extact to determine types of secondary metabolites in them. Results obtained from the field tests indicated that stakes impregnated with ethanol extract of T. peruviana offered significant protection against subterranean termites and this compares well with results obtained for Chlorpyrifos (Dursban). Repellency/attractancy tendencies results showed that ethanol extract enhanced attrantancy of subterranean termites. Brine shrimp lethality tests results gave an indication that fraction 1 was most efficacious suggesting obvious cytotoxicity. Phytochemical investigation revealed the presence of glycosides in the ethanol extract. The results suggest that ethanol extract of T. peruviana and its components could serve as a useful option in the control of subterranean termites.

Keywords:Thevetia peruviana, extracts, termites, brine shrimp 

Cite this Reference:

Tagbor TA, Twumasi SK, Bosu PP, Epraim JH (2014). The termite controlling capabilities of extracts of Thevetia peruviana (Pers.) K. Schum in Ghana. Interlink Continental J. Environ. Sci. Toxicol. 1(1): 001-008.