Repellency Effect of Essential Oils of Mentha piperita, Rosmarinus officinalis and Coriandrum sativum on Tribolium confusum duval (Coleoptera: Tenebrionidae)

Abstract Confused flour beetle, Tribolium confusum is a major pest of stored products especially cereal flour depreciating the quantity and quality of the food, economically. The application of repellents could be considered as a new control method in storage products. In this study repellent activity of essential oils of Mentha piperita, Rosmarinus officinalis and Coriandrum sativum was assayed on Tribolium confusum at 27±1 °C, 65±5% R.H under dark condition. The essential oil was obtained from dry seeds of C. sativum and aerial parts of M. piperita and R. officinalis subjected to hydrodistilation using a Clevenger type-apparatus. The results showed that essential oil of R. officinalis and M. piperita were more repellent than C. sativum. The essential oils of R. officinalis, M. piperita and C. Sativum lead to repellent of 86.22, 82.22 and 67.15 % after 24 h, respectively. Repellency increased with increasing of concentration in all cases. These results demonstrated the efficacy of M. piperita, R. officinalis and C. sativum oils for applying in organic food protection

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