In this study, the effect of water and alcoholic (ethanol) extracts Caper Bush Capparis spinosa L., Cumine Cuminum cyminum L. , Black pepper Piper nigrum Sage Salvia sp. Cat thyme Teucrium polium plants on 4th instar larvae Culex quinquefasciatus have been evaluated .The results showed that extract P. had highest larvae, with 48h LC50 155. 9 ppm followed by ethanol C. 308.2 ,315.1and 791.4 resp...