The accumulative and non accumulative effects of water and some organic extracts of Eucalyptus microtheca and Datura innoxia on the larvae of Culex quinquefasciatus

Abstract

A study was conducted to investigate the accumulative and non accumulative effects of leaves extracts of two plants (Eucalyptus microtheca and Datura innoxia) on larvae of Culex quinqefasciatus . Water and organic (ethyl acetate ,methanol and petroleum ether) extracts were used. The petroleum ether extract was the most effective one on larvae All the extracts increased the time of larval stage and caused distortions of larva.

Keywords

Datura, innoxia, larvae, Culex