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.
Ndiaye, A., et al. (2005) Cereals. In: Assessment of Agricultural and Agroalimentary Research in Senegal, Senegalese
Institute of Agricultural Research (ISRA), Dakar, Food Institute of Technology (ITA), CIRAD, 241-256.
Fall, A.A. and Dieye, P.N. (2008) Impact of World Rates of
Rice on Food Safety in Senegal. Perspect Reflections. Senegalese Institute of Agricultural Research,
6-6.
FAO (1998) The Corn in
the Human Nutrition. United Nations Organization for the Food and Agriculture (FAO)
and the Information network on the Operations after Harvest (INPhO).
N’Guessan, K., et al. (2009) Screening Phytochimic of Some Medicinal Herbs of
the Ivory Coast Used in Country Krobou (Agboville, Coast-of Ivory). Sciences
& Nature, 4, 5.
Bekro, Y.A., Bekro, J.A.M., Boua, B.B., Tra, B.F.H. and Ehile, E.E. (2007) Ethnobotanic Study and Screening Phytochimic of Caesalpinia benthamiana (Baill.) Herend. and Zarucchi (Caesalpiniaceae). Sciences and Nature, 4, 217-225.
Regnault-Roger, C., Ribodeau, M., Hamrauoui, A., Bareau, I., Blanchard, P., Gil, M.I.
and Tomas Barberan, F. (2002) Disturbance of Acarthoscelides obtectus (Bruchidae. Cleoptera) Behavior by Polyphenolic Compounds
Identified in Insecticidal Labiatae Botanicals. Journal
of Stored Products Research (Review).
Vandenborre, G., Smagghe, G. and Van Dammea, J.M. (2011) Plant Lectins as Defense Proteins against
Phytophagous Insects. Phytochemistry, 72, 1538-1550. http://dx.doi.org/10.1016/j.phytochem.2011.02.024
Meric, K.
(2005) Studies on the Compounds Polyphenolic in Relation to the Food of the
Tortrix of the Buds of the Virginal (Choristoneura fumiferana(Clem.)). Doctorate, Forest Sciences, Université Laval, Canada.
Gueye, M.T., Seck, D., Ba, S., Hell, K., Sembene, M., Wathelet, J.-P.
and Lognay, G. (2011) Insecticidal Activity of Boscia senegalensis(Pers.) Lam ex Poir. on Caryedon serratus(Ol.) Pest of Stored Groundnuts. African Journal of Agricultural Research, 30, 6348-6353.
Lucie, A.T. (2013) Integrated Management of the Principal
Devastating Insects of Cereals by the Use of the Secondary Metabolites of the Indigenous
Plants of Senegal and Central Africa. Doctorate Thesis, Production and Protection
of the Plants, UCAD.