Bioefficacy of organic extracts of A. sativum against S. zeamais (Coleoptera; Dryophthoridae)Ouko RO*, Koech SC, Arika WM, Osano KO, Ogola PE, Oduor RO and Ngugi MP
Department of Biochemistry and Biotechnology, School of Pure and Applied Sciences, Kenyatta University, Nairobi, Kenya
- Corresponding Author:
- Ouko Robert Odhiambo
Department of Biochemistry and Biotechnology
School of Pure and Applied Sciences
Kenyatta University, P.O. Box 43844-00100
E-mail: [email protected]
Received date: January 22, 2017; Accepted date: February 17, 2017; Published date: February 24, 2017
Citation: Ouko RO, Koech SC, Arika WM, Osano KO, Ogola PE, et al. (2017) Bioefficacy of organic extracts of A. sativum against S. zeamais (Coleoptera; Dryophthoridae). Biol Syst Open Access 6:174. doi:10.4172/2329-6577.1000174
Copyright: © 2017 Ouko RO, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution and reproduction in any medium, provided the original author and source are credited.
Laboratory based experiments were carried out to determine the fumigant toxicities, repellent and progeny emergence inhibition activities of Methanolic, Hexane and Methanolic: Hexane blend extracts of Allium sativum on Sitophilus zeamais (Coleoptera; Dryophthoridae). Four different concentrations (25, 50, 75 and 100%) of the extracts were tested. the fumigant toxicities of the A. sativum extracts were found to be dependent on both concentration and exposure time. the maximum toxicities (96.15%) was recorded for higher concentration of blend extracts and minimum (6.41%) with hexane extracts of A. sativum at lowest concentration of (25%). The three different A. sativum extracts recorded significantly good level of repellent activities and reduction in progeny emergence.