Dengue hemorrhagic fever (DHF) is still a health problem in Indonesia, transmited by Aedes aegypti. One of vector control method against Aedes aegypti larvae has conducted using Bacillus thuringiensis due to safe for the environment. The objectives of this study was to isolate and identify B. thuringiensis which toxic to Ae. aegypti larvae at various habitat and ecosystem in the District Magela…