A plasmid encoding a combination of mosquito-larvicidal genes from Bacillus thuringiensis subsp. israelensis and Bacillus sphaericus confers toxicity against a broad range of mosquito larvae when expressed in Gram-negative bacteria.

A plasmid encoding a combination of mosquito-larvicidal genes from Bacillus thuringiensis subsp. israelensis and Bacillus sphaericus confers toxicity against a broad range of mosquito larvae when expressed in Gram-negative bacteria.