Laboratory Assessment of Some Plants Latex as Biopesticide Against Cowpea Bruchid, Callosobruchus maculatus (Fab.) [Coleoptera: Chrysomelidae]

K. Ileke, M. Oni and O. Adelegan

Journal of Agricultural Science, 2013, vol. 6, issue 1, 123

Abstract: Laboratory evaluation of Calotropis procera, Alstonia boonei, Jatropha curcas and Argemone mexicana latex as biopesticide against cowpea bruchid, Callosobruchus maculatus (Fab.) [Coleoptera- Chrysomelidae] were evaluated at ambient temperature and relative humidity of 28±2oC and 75±5% respectively. The plants latex was tested at rates of 0.5 ml, 1 ml, 1.5 ml and 2 ml / 20 g of cowpea seeds. Adult mortality and adult emergence of the insects were investigated. Results showed that at rates of 1 ml, 1.5 ml and 2 ml/ 20 g of cowpea seeds, A. boonei latex evoked 100% mortality of adult cowpea bruchid after 4 days of post treatment. This is followed by C. procera and J. curcas which caused 100% mortality of cowpea bruchid at rates of 1.5 ml and 2 ml / 20 g of cowpea seeds while the least effective plant Argemone mexicana latex. There was no adult emergence in seeds treated with A. boonei latex at tested concentrations and C. procera and J. curcas at rates of 1.5 ml and 2 ml / 20 g of cowpea seeds compared with untreated that had 87.75% adults emergence. The results obtained from this study revealed that Alstonia boonei, Calotropis procera and J. curcas latex were effective in controlling of C. maculatus and could serve as an alternative to synthetic insecticides for the protection of stored cowpeas against bruchids.

Date: 2013
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://ccsenet.org/journal/index.php/jas/article/download/30304/18991 (application/pdf)
https://ccsenet.org/journal/index.php/jas/article/view/30304 (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:ibn:jasjnl:v:6:y:2013:i:1:p:123

Access Statistics for this article

More articles in Journal of Agricultural Science from Canadian Center of Science and Education Contact information at EDIRC.
Bibliographic data for series maintained by Canadian Center of Science and Education ().