A more pragmatic approach might be to just do it and ask forgiveness instead.
If you have a few million dollar yourself that might be true. On the other hand running a kickstarter campaign for this idea and then managing the whole thing is outside of my capabilities. On the other hand hosting a website and writing a petition isn't.
I even have some media contacts from my time in Quantified Self.
I think that there are enough people who really hate mosquitos to produce enough political pressure if those people can be convinced that we can simply buy the result for 1€ of their tax money. They might even spent more money currently on anti-mosquito products.
Strategly organising such a project is also something very high leverage that a local effective altruism group can just do. A weekend of sitting together and writing the core texts. Then some time coordinating to get initialise the right way. You can answer a bunch of media queries with takes additional time but not that much. If the reporter wants to interact with you maybe 3-4 hours per news piece.
A bit more if you try cold call many reporter and most requests fail, but that time is optional and you can distribute it in a team.
It boggles my mind that running a kickstarter campaign in association with the bioengineers behind this is beyond your capabilities, but pushing legislation through the political process is not. Either you know more about the difficulties of running a science kickstarter than I do, or you greatly underestimate the difficulty of securing taxpayer financing.
According to Louie Helm eradicating a species of mosquitoes could be done for as little as a few million dollar.
I don't have a few million dollar lying around so I can't spend my own money to do it. On the other hand, I think that on average every German citizen would be quite willing to pay 1€ per year to rid Germany of mosquitoes that bite humans.
That means it's a problem of public action. The German government should spend 80 million Euro to rid Germany of Mosquitos. That's an order of magnitude higher than the numbers quoted by Louie Helm).
The same goes basically for every country or state with mosquitos.
How could we get a government to do this without spending too much money ourselves? The straight forward way is writing a petition. We could host a website and simultaneously post a petition to every relevant parliament on earth.
How do we get attention for the petition? Facebook. People don't like Mosquitos and should be willing to file an internet petition to get rid of them. I would believe this to spread virally. The idea seems interesting enough to get journalists to write articles about it.
Bonus points:
After we have eradicated human biting mosquitoes from our homelands it's quite straightforward to export the technology to Africa.
Does anyone see any issues with that plan?