الوصف
The aim of this work is to propose a new alternative method based on plants to fight against synthetic insecticides. The powder and the ethanolic extract, prepared from the leaves of Taxus baccata of Ifrane Val, were tested on Sitophilus oryzae (L.) with different concentrations and for various durations of exposure. On the first hand, the toxicity of the prepared powder and ethanolic extract increases with the concentration.