Some environmental and biological factors influencing the activity of entomopathogenic Bacillus on mosquito larvae in Brazil

The influence of environmental and biological factors on the efficacy of Bacillus thuringiensis serovar israelensis Art for Kids and B.sphaericus as mosquito larvicides are reviewed.The importance of strain dependence, cultivating media/methods, mosquito species/specificity, formulations and their relation to mosquito feeding habits, as well as temperature, solar exposure, larval density Apparel - Hats and concomitant presence of other aquatic organisms are addressed with reference to the present status of knowledge in Brazil.