Mosquitoes transmit serious human diseases, causing millions of deaths every year.Snails' species are associated with transmission parasitic disease as intermediate host. The environmental problems caused by overuse of high toxicity, non-biodegradable materials of pesticides and the residue in soil, water resources and crops that affect public health. Thus, on the one hand, one needs to search the new highly selective, biodegradable pesticides and environmental friendly pesticides. The tested plant extract in present study were evaluated against Culexpipiens larvae and their LC50 and LC95 at P= 0.05 was calculated. The lowest LC50 is 123.05 forArtemisiasp, from all ethanolic extracts and39.64 for Solenostemmaargel from all pet-ether extracts. The lowest LC50 for ethanolic extracts and pet-ether were 32.79 and15.70 of SolenostemmaArgelagainst snail vector respectively. The binary mixtures appear synergist and additive activity when tested against Culexpipien and Biomphalariaalexandrina.
