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has been cited by the following article:

• TITLE: Phytochemical Screening and Insecticidal Activity of Three Extracts of Tapinanthus bangwensis (Engl. Krause) on Sitophilus zeamais (Maize Weevil)

  AUTHORS: El Hadji Gorgui Diouf, Moussoukhoye Diop, Aboubacary Sene, Abdoulaye Samb

  KEYWORDS: Extracts, Tapinanthus bangwensis, Sitophilus zeamais, Stored Food, Maize

  JOURNAL NAME: Open Access Library Journal, Vol.3 No.8, August 29, 2016

  ABSTRACT: 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.