This is by doing automation - a robot that rear moskuitos , removes females from the group, automatically releases mosquitos at the right area, result measurement tools, etc.
Another interesting thing:reading this, and the recent news about Google entering geo-thermal power generation - One gets the notion that Google found a way to locate areas with a decent solution available, but that just needed scaling - developing cheaper processes and tools, working with cities and government and financing institutions, etc.
And doing that is much easier than inventing new stuff in really hard areas, like the previous approach of Alphabet.
And i could see how having the best search engine in the world, all that data, all that "AI" capability could enable an automated or half-automated "lead sensing" approach such as this.