Mesacyclops aspericornis was investigated for its effectiveness in controlling Aedes aegypti larvae in a variety of containers e. Metal drum, cistern, clay jars, and other container mode of plstic. A study was carried out in Kenteng hamlet. Tegalrejo village, Salatiga Municipality. It was conducted by health-workers (staff of Vector and Reservoir Control Unit and Health Center of Tegalrejo) and…