I'm only aware of the test conducted in Brazil, which had a claimed 80% reduction rate: Oxitec, which is owned by Maryland-based Intrexon Corporation, tested i

I'm only aware of the test conducted in Brazil, which had a claimed 80% reduction rate: Oxitec, which is owned by Maryland-based Intrexon Corporation, tested its mosquitoes in the small Brazilian city of Piracicaba and said the reduced the number of mosquito larvae by 80 percent in one area.