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Contribution of
different constituents to the toxicity of the essential oil
constituents of Vernonia amygdalina (Compositae) and
Xylopia aetiopica (Annonaceae) on maize weevil,
Sitophilus zeamais Motschulsky (Coleoptera:
Curculionidae)
Asawalam E. F1,
2*, Emosairue S. O2 and Hassanali A.1
1Behavioural
and Chemical Ecology Department, International Centre of
Insect Physiology and Ecology P. O. Box 30772-00100 Nairobi,
Kenya.
2Department
of Plant Health Management Michael Okpara University of
Agriculture, Umudike P. M. B. 7267 Umuahia, Abia state
Nigeria.
*Corresponding author. E-mail:
elechiasw@yahoo.com,
easawalam@icipe.org.
Tel:
+2348036755026.
Accepted 12 March, 2008 |