In recent years, use of environment friendly and biodegradable natural insecticides of plant origin have received renewed attention as agents for vector control. In this study, essential oils extracted by steam distillation from leaves of five plant species Centella asiatica L., Ipomoea cairica L.,
Ipomoea aquatica (I. aquatica) (Convolvulaceae) is commonly grown green leafy vegetable found throughout India, Ceylon, Tropical Asia, Africa, and Australia. Traditionally, I. aquatica used as carminative agent and lessens inflammation, and is useful in fever, jaundice, biliousness, bronchitis,