الفهرس 
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Abstract
The present study was directed to :
1-Focus the efficiency of pesticides ; the peroethroid (Cyhalothrin) and the organophosphorus pesticides (Chjorpyrifos) and oils extraction (orange and lemon) to control mosquito Culex pipiens which can transmit some diseases to human using differnt experimental methods.
2-Study the effect of concentration of Cyhalothrin and Chjorpyrifos against mosquito adult by using two application methods (discs for male and female and trap for male)that for reducing the pesticides concentrations and to avoid the environmental pollution.
3-Study the side effects of Chjorpyrifos, Cyhalothrin, orange oil, lemon oil and the mixtures of them on the cholinestrase activity.
4-The experiment traps were used to focus the effect of tested insecticides against mosquito male which were attracted by the trap containing sugar solution mixed with the tested insecticides.