@article {10860,
	title = {Efficacy of some plant species for the control of cowpea weevil (Callosobruchus maculatus) and maize weevil (Sitophilus zeamais)},
	journal = {International Journal of Agriculture and Biology},
	volume = {10},
	number = {5},
	year = {2008},
	month = {2008},
	pages = {588-590},
	type = {Article},
	abstract = {The influence of leaf powders of Vitex grandifolia and Dracaena arborea incorporated into maize and cowpea flour on the survival of maize weevil (Sitophilus zeamais) and cowpea weevil (Callosobruchus maculatus), respectively was tested. Survival of adult beetles of maize and cowpea weevil was least on cowpea (10 g) and maize (10 g) flour treated with 3 g V. grandifolia (3.30-20\%, 6.70-20\%, respectively) and 3 g D. arborea (3.300-13.3\%, 0.0-3.3\%, respectively) compared to other treatments, which included different concentrations of the leaf powders. V. grandifolia was inhibitory to mean adult emergence of C. maculatus (7.00-9.33) and S. zeamais (8.00-9.67) compared with the control (15.00). However, D. arborea did not differ from the control. It is concluded that V. grandifolia has great potential for use as a plant-based biopesticide for controlling both weevil pests.},
	keywords = {Sitophilus zeamais},
	isbn = {1560-8530},
	author = {Epidi, Timothy T. and Nwani, C. D. and Udoh, S.}
}
@article {10861,
	title = {Susceptibility of Sitophilus zeamais Mots. and Callosobruchus maculatus F. to plant parts of Ricinodendron heudelotii},
	journal = {Journal of Plant Protection Research},
	volume = {49},
	number = {4},
	year = {2009},
	month = {January},
	pages = {411-415},
	abstract = {Studies were carried out in the laboratory to determine the efficacy of powders from plant parts of Ricinodendron heudelotii against the storage pests Sitophilus zeamais and Callosobruchus maculatus on stored maize and cowpea, respectively. Leaf, bark and root powders were added as admixtures to 100 g of grains to assess contact toxicity, damage assessment, progeny production and grain germination. Results indicated that the plant materials were toxic to the two insect species with over 30\% and 75\% mortality for S. zeamais and C. maculatus, respectively. Observable damage level was significantly (p <= 0.05) lower in treated grains while progeny production by both insect species was significantly (p = 0.05) reduced. Grain germination of both crops was not affected by the powders. The potential use of P. heudelotii in storage pest management is discussed.},
	keywords = {Sitophilus zeamais},
	isbn = {1427-4345},
	author = {Epidi, Timothy T. and Udo, Ime O. and Osakwe, Joseph A.}
}
