Contact toxicity of some fixed plant oils and stabilized natural pyrethrum extracts against adult maize weevils (Sitophilus zeamais Motschulsky)
H. N. Wanyika1, P. G. Kareru1*, J. M. Keriko1, A. N. Gachanja1, G. M. Kenji2and N. J. Mukiira3
1Department of Chemistry, Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya.
2Department of Food Science and Technology, Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya.
3National Agricultural Laboratories, Kabete, Kenya.
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