Definitely, mosquitoes are annoying and it can spread diseases also. The best way to destroy mosquito is electronic killing using Swatter. It eliminates the use of toxic chemicals. The mosquito coils and liquids do not kill mosquito but they repel them only. Mosquitoes will return back when the chemical disappears from the atmosphere. The swatter is commonly called as Mosquito bat and is meant for killing the mosquito and not for repelling. Since each mosquito lays thousands of eggs, destroying a mosquito equals destroying thousands of mosquitoes.
See more in this link http://www.engineersgarage.com/contribution/mosquito-swatter