Characterization of Bacillus thuringiensis isolates with potential for control of Aedes aegypti (Linnaeus, 1762) (Diptera: Culicidae)

► We detected high incidence of B. thuringiensis (Bt) with toxicity to Ae. aegypti. ► Bioassays in different pH showed Bt isolates with higher activity than type strain. ► Some Bt isolates showed no differences in bioassays at low temperatures. ► The isolates showed a profile of cry genes similar to the standard.