Agreed. Mosquitoes are important pollinators and necessary members of our food chain, we would be hurting without their help. Only reproducing females require a blood meal, further complicating the issue.

To that end, check out this [0] anti-mosquito laser weapon, which they claim can be tuned to target only females based on wing beat frequencies. While I disagree with the principal, a laser mosquito defense system gets cool points from me for creativity.

[0] http://spectrum.ieee.org/tech-talk/aerospace/military/laser-...