If you want to kill mosquitoes naturally and effectively, drink coffee.

validated its efficacy as a natural repellant, and it comes highly recommended by the American Environmental Protection Agency (EPA). Here is a straightforward method to harness its full repelling potential.

The coffee grounds should be spread out on a foil-lined plate and left in a cool, dry spot until they are fully dried.

Put it on a table or balcony and light it until it starts to smoke; the coffee grounds burn slowly and steadily, driving insects away.