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Effects of Crude Terpene Extarcts from Ammi majus L. Leaves and Flowers on some Aspects of Life Performance of Oryzaephilus surinamensis L. (Coleoptera; Silvanidae)

The current study was conducted with the aim of evaluating the effects of crude terpene extracts of leaves and flowers collected from of Ammi majus on some aspects of the biological performance of Oryzaephilus surinamensis grain beetle. The results revealed that the crude terpene extract of flowers at concentrations of 10, 20 and 30 mg / ml had a significant effects on the cumulative mortality rate of the beetle’s different life stages. The highest mortality rate values reached (73.3, 46.7)% at the concentration 30 mg / ml after 72 hours treatment for the second larval instars and adults, respectively. While the mortality rates achieved from treatment with the same concentrations of the crude terpene leaf extract reached (53.3, 33.3)% after 72 hours for the second larval instars and adults.