In order to find alternative to synthetic pesticides, plants are increasingly
used by farmers to protect stocks against crop pests. Thus, phytochemical and biological
tests are performed on three organic extracts (cyclohexan, chloroform and methanol)
of Tapinanthus bangwensis. The data were
analyzed by the General Linear Model procedure using the software Minitab 16. These
results showed that the methanol extract gives a better insecticidal activity on Sitophilus zeamais. RIZA software was
used to calculate the LC50 of each extract. The cyclohexane extract gives an LC50
of 2.66 mg/ml after 18 days of treatment, while the chloroform extract and methanol
respectively give LC50 of 4.49 mg/ml and 6.99 mg/ml after 19 and 20 days of treatment.
Cite this paper
Diouf, E. H. G. , Diop, M. , Sène, A. and Samb, A. (2016). Phytochemical Screening and Insecticidal Activity of Three Extracts of Tapinanthus bangwensis (Engl. Krause) on Sitophilus zeamais (Maize Weevil). Open Access Library Journal, 3, e2962. doi: http://dx.doi.org/10.4236/oalib.1102962.
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