Evaluation of Khaya senegalensis products in the control of Tribolium casteneum on stored sorghum

Abstract The seed and leaf powders of Khaya senegalensis were used for the control of Tribolium casteneum on sorghum grains of variety SAMSORG-17. The K. senegalensis seed powder at 5, 10 and 20 g performed better than the leaf powder in ensuring adult mortality of T. casteneum at 24, 48 and 72 h. These also suppressed F1 progeny emergence and prevented percentage grain damage significantly better than the leaf powder. The leaf powder was however better than the control. The seed powder was as good as the standard check (Actellic dust) at all levels. The presence of oil in the seed powder is believed to be responsible for its effectiveness in the control of T. casteneum.