Larvicidal and synergistic potentials of some plant extracts against Aedes aegypti

Abstract

Introduction: The phytochemical analysis of the methanol extracts of four plants was determined and assayed for their larvicidal activities against the 4th instar larvae of Aedes aegypti, aiming to detect the promising ones. Method: The parts of the plants were sampled, dried out and powdered. The powdery parts of the plants were extracted with the help of methanol at room temperature for 3 days, with agitation. The extract was filtered and concentrated in vacuo. The resulting methanol extracts were tested against the 4th instar larvae of Aedes aegypti. Results: About sixty four percent (64.3%) of the tested extracts had moderate larvicidal activity after 24 hours. The leaf extract of Capsicum annuum was the most active at 1000 ppm. Conclusion: The parts of the plants assayed gave a dissimilar variety of larvicidal potentials, which can be utilized as a control manager for mosquitoes.