1. Adedire, C. O., Ajayi, T. S. (1996): Assessment of the insecticidal properties of some plant extracts as grain protectants against the maize weevil, Sitophilus zeamais Motschulsky. Nigerian J. Entomol. 13, 93–101.
2. Dike, M. C., Mbah, O. I. (1992): Evaluation of lemon grass, Cymbopogon citratus Staphs. products in the control of Callosobruchus maculatus (F.) (Coleoptera: Bruchidae) on stored cowpea. Nigerian J. Plant Protect. 14, 88–91.
3. Haines, C. P. (1999): Insects and Arachnids of tropical stored products: Their biology and identification (A training manual). Natural Resources Institute, Chatham, Kent, United Kingdom.
4. Howe, R. W. (1952): Entomological problems of food storage in Nigeria. Bull. Entomol. Res. 43, 111–144.
5. Ivbijaro, M. F. (1983): Toxicity of neem seeds Azadirachta indica A. Juss, to Sitophilus oryzae (L.) in stored maize. Protect. Ecol. 5, 353–357.