Larvicidal and pupicidal properties of Coccinia grandis gourd fruits against malaria transmitting vector Anopheles stephensi and dengue transmitting vector Aedes aegypti

Abstract

Plant based natural control of vector mosquitoes is very important to prevent the environmental toxicity caused by insecticides used to control the mosquitoes. Thus, in the present research was aimed to study the larvicidal and pupicidal properties of different extracts of fruit of Coccinia grandis gourd against malaria vector Anopheles stephensi and dengue vector Aedes aegypti. The fourth instars larvae of A. stephensi and A. aegypti were used for larvicidal activity and kept a container containing 249 ml of distilled water and 1 ml of known concentration of plant extracts and incubated for 24 hours. The mortality rate of larvae was observed at every 3 hours and recorded. Pupae of A. stephensi and A. aegypti were placed a container containing 249 ml of distilled water and 1ml of desired concentration of plant extracts and incubated for 24 hours. The mortality of pupae was observed at every 3 hours and recorded. Different extracts of fruit of C. grandis gourd possessed potential larvicidal and pupicidal activity against malaria vector A. stephensi and dengue vector Aedes aegypti. It was due to the presences of phytocompounds such as tannis, saponin etc. Different extracts of fruit of C. grandis gourd possesses larvicidal and pupicidal activity against malaria transmitting vector A. stephensi and dengue transmitting vector Aedes aegypti. Thus the fruit of C. grandis gourd was might be useful for control of mosquitoes after the details experiments.