Broward County launches a mosquito control campaign targeting larvae to prevent diseases like dengue and yellow fever.

78, No. 3 (Sep., 1995), pp. 414-443 (30 pages) Insecticidal crystal proteins (also known as δ-endotoxins) synthesized by the bacterium Bacillus thuringiensis Berliner (Bt) are the active ingredient of ...

Bacillus thuringiensis is a species of bacteria ... must be maintained in order to avoid reliance on a single tactic. Active ingredient: Substance in a pesticide that is biologically active.