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Toxicity Potentials of Leaf Powders of Wild Lemon (Afreagle paniculate) and African Rock Fig (Ficus congensis Engl.) Against the Cowpea Seed Bruchid (Callosobruchus maculatus Fab.)

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  • C. Oaya
  • A. Samaila

Abstract

The toxicity potentials of the wild lemon (Afreagle paniculate) and the African rock fig (Ficcus congensis Engl.) leaf powder as an alternative source of control against the cowpea seed bruchid (Callosobruchus maculatus Fab.) on stored cowpea was evaluated. The results obtained shows that, these plant material powdered leaves had remarkable effects on all the parameters measured. There were 76.34% and 77.20% undamaged seeds recorded respectively, when cowpea seeds were stored with these plant material powdered leaves compared to the control, 7.50%. High mortality of 84.61% and 85.51% respectively, was obtained in these plant material powdered leaves and the least was in the control, 16.84%. Likewise, there was only 7.67 and 6.01 number of adults that emerged while the control had 23.85. High number of eggs laid was recorded in the control. It was also found out that, these plant material powdered leaves are promising candidates for developing botanical, biodegradable and ecologically friendly insecticides which can be integrated with other pest management procedures and could replace the use of synthetic insecticides on small farmers holding. Therefore, the leaf powders are recommended for storing cowpea seeds for at least 12 weeks giving the grains perfect state of wholesomeness.

Suggested Citation

  • C. Oaya & A. Samaila, 2013. "Toxicity Potentials of Leaf Powders of Wild Lemon (Afreagle paniculate) and African Rock Fig (Ficus congensis Engl.) Against the Cowpea Seed Bruchid (Callosobruchus maculatus Fab.)," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 5(4), pages 1-80, March.
  • Handle: RePEc:ibn:jasjnl:v:5:y:2013:i:4:p:80
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    JEL classification:

    • R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General
    • Z0 - Other Special Topics - - General

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