We're using lasers http://www.physorg.com/news185463943.html
We're using smelly socks http://www.popsci.com/science/article/2011-07/sock-science-f...
We're tricking them into drinking poison http://www.nytimes.com/2011/09/27/health/27mosquito.html
We're even genetically engineering them to self destruct http://gizmodo.com/5852703/mosquitoes-genetically+engineered...
It's a bad time to be a mosquito.
(Also, I think this is how a Starship Troopers / Ender's Game scenario starts.)