No. Many mosquitoes need standing water to lay eggs. If you landscape in a way that allows water to soak into the ground or into a planted area, like a rain garden, the conditions will not be favorable for them to breed. However, it is important to keep an eye on potential areas that do collect standing water, like a bird bath, empty tire, or watering can. Flip these over after a rain or empty them out every 5 days. Bromeliads are a particular favorite for mosquitoes as well because they can hold water for several days after a rain. Flush them out every 5 days or treat them with Bacillus thuringiensis israeli (i.e. BTI mosquito bits) to get rid of larvae. Make sure your gutters are cleaned out and do not store water either. Keep yard material away from clogging storm drains and report standing water in areas, like roadways, that usually do not have water.