Mosquitoes can quickly ruin the enjoyment of your outdoor garden experience. Ordinary repellents are full of nasty chemicals that you probably don't want to put onto your family, and bug zappers are annoying. It also can be debated, how effective candles or incense really is.
The threat of contracting a disease from a mosquito is very real. Not only are humans being infected with dangerous illnesses, so are animals including household pets. Over one million people are said to die each year from contracting diseases from mosquitoes. In the US, the most common disease is West Nile, but they also carry diseases like malaria, dengue fever, dog heartworm, chikungunya and the recent Zika Virus, which is responsible for outbreaks in tropical areas throughout the world and was found in 2015 for the first time in the Western Hemisphere. More can be learned about the Zika Virus, here.
To help keep mosquitoes from using your yard as a breeding ground, make sure you eliminate all standing water, trim back un-needed vegetation, and consider planting these mosquito repelling plants.
In addition to repelling mosquitoes, it's also quite an attractive plant to grow.
While the catmint plant does repel mosquitoes that are close, you can try adding crushed leaves or oil for even stronger protection. Watch out though, if you own cats they will probably respond to you the same way they respond to the plant itself. If you're a cat owner, you might want to try other natural ways to deter mosquitoes.
"Potted marigolds can be positioned near entrances to your home and any common mosquito entry points, such as open windows. The smell may deter mosquitoes from going past this barrier. While marigolds can be used as border plants around the patio, we do not advise putting marigolds on the patio table since the bright blooms may attract wasps.
Besides repelling mosquitoes, marigolds repel insects which prey on tomato plants, so you may want to plant a few marigolds in your tomato bed for added protection." -source "Learn.EarthEasy.com"