Synergistic effect of Croton bonplandianum Baill. with Cypermethrin and Lambda-cyhalothrin against Aedes aegypti Linn, a Dengue fever vector

Abstract Vector-borne diseases are increasing exponentially, and the mosquito vectors contribute to the majority of it. Dengue fever is considered one of the foremost causes of causalities around the globe, which is primarily transmitted by Aedes aegypti. Control sequences of this vector species using chemical insecticides are now come to be insufficient due to the rapid resistance development in the aimed species. To avoid this, a newer concept of synergy has been introduced by combining two or more compounds with pesticidal capacity. In this study, a hexane extract of the plant Croton bonplandianum are separately combined with two pyrethroids, Lambda-cyhalothrin and Cypermethrin against the dengue fever vector, Aedes aegypti. Individual larvicidal capabilities and the synergistic effects of these compounds were inquired, and synergism was found to provide better larvicidal activity.