Evaluation of (Khaya senegallensis) for the control of Tribolium confusum (Duval) (Coleoptera: Tenebrionidae) on Stored Pearl Millet

Bawa Livinus Yakubu, Ainika Joseph Nda


The efficacy of Khaya senegalensis products was evaluated for the control of Tribolium confusum infesting pearl millet seeds. The plant products were used at 5 g, 10 g, and 20 g, and 2.0 g Actellic dust was used as standard check which was replicated three times and also with an untreated control. The parameters assessed include mortality, emergence, and seed damage. The results showed that Actellic dust (2 %) caused significantly higher (p < 0.05) mortality of adult T. confusum at 24 hrs than Khaya senegalensis treated grains and the control. The seed powder at 20 g caused significantly (p < 0.05) mortality of T. confusum than other formulations and the untreated control. The leaf powder at all levels is not significantly different compared to the control. At 48 hrs and 72 hrs Actellic dust caused significantly (p < 0.05) mortality (100 %) of adult T. confusum compared to others while the seed powder at 5 g had higher mortality compared to the control. No. significant mortality was recorded among plant products and the control at 72 hrs. At 8 weeks post-treatment the progeny emergence was significantly higher (p < 0.05) on the control than on leaf powder, seed powder at different concentrations and Actellic dust, but there was no significant difference among the treatments. The percentage grain damage showed significant differences between the treatments, although the control had more grain damage than the treated grains.

Keywords: Khaya senegalensis products, efficacy, Tribolium, millet

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ISSN (Paper)2224-7181 ISSN (Online)2225-062X

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