Only female mossies and hateful little shits feed on blood, they need it to make eggs.
Nuke them from orbit. Its the only way to be sure.
I wonder if here we play god, and we removed the entire species if it could generate some kind of vacuum on the pyramid...
These and the mosquitoes, because to be honest, the birds and other insects could perfectly feed from other alternatives...
I think the most effective thing to do would be to eliminate the human species. Because to be honest, the mosquitos and the horseflies could perfectly feed from other alternatives ...
Not to mention it would have an amazingly healing effect over-all.
Insects: How can we eliminate the human species?
Human species: We'll handle that.