effect of bacillus thuringiensis strain H-14 and bacillus sphaericus isolate 1593-4 on the fecundity and longevity of anopheles stephensi

The effect of 4th instar larval exposure to the bacterial larvicides of B. Thuringiensis H-14 and B. sphaericus [1593-4] on the fecundity and longevity of adults survived larval treatment was investigated. Results revealed a non-significant effect of B. Thuringiensis treatment on both fecundity and longevity. However, longevity was decreased due to larval exposure to B. Sphaericus, while, this bacterium has no effect on fecundity